// Code generated by modernc.org/undup from the per-target sqlite_*.go files; DO NOT EDIT.

//go:build (freebsd && amd64) || (linux && amd64) || (linux && loong64) || (netbsd && amd64) || (openbsd && amd64)

package sqlite3

import (
	"unsafe"

	"modernc.org/libc"
)

// C documentation
//
//	/*
//	** Allocate memory to hold names for a database, journal file, WAL file,
//	** and query parameters.  The pointer returned is valid for use by
//	** sqlite3_filename_database() and sqlite3_uri_parameter() and related
//	** functions.
//	**
//	** Memory layout must be compatible with that generated by the pager
//	** and expected by sqlite3_uri_parameter() and databaseName().
//	*/
func Xsqlite3_create_filename(tls *libc.TLS, zDatabase uintptr, zJournal uintptr, zWal uintptr, nParam int32, azParam uintptr) (r uintptr) {
	var i int32
	var nByte Tsqlite3_int64
	var p, pResult, v2 uintptr
	_, _, _, _, _ = i, nByte, p, pResult, v2
	nByte = libc.Int64FromUint64(libc.Xstrlen(tls, zDatabase) + libc.Xstrlen(tls, zJournal) + libc.Xstrlen(tls, zWal) + uint64(10))
	i = 0
	for {
		if !(i < nParam*int32(2)) {
			break
		}
		nByte = libc.Int64FromUint64(uint64(nByte) + uint64(libc.Xstrlen(tls, **(**uintptr)(__ccgo_up(azParam + uintptr(i)*8)))+libc.Uint64FromInt32(1)))
		goto _1
	_1:
		;
		i = i + 1
	}
	v2 = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(nByte))
	p = v2
	pResult = v2
	if p == uintptr(0) {
		return uintptr(0)
	}
	libc.Xmemset(tls, p, 0, uint64(4))
	p = p + uintptr(4)
	p = _appendText(tls, p, zDatabase)
	i = 0
	for {
		if !(i < nParam*int32(2)) {
			break
		}
		p = _appendText(tls, p, **(**uintptr)(__ccgo_up(azParam + uintptr(i)*8)))
		goto _3
	_3:
		;
		i = i + 1
	}
	v2 = p
	p = p + 1
	**(**int8)(__ccgo_up(v2)) = 0
	p = _appendText(tls, p, zJournal)
	p = _appendText(tls, p, zWal)
	v2 = p
	p = p + 1
	**(**int8)(__ccgo_up(v2)) = 0
	v2 = p
	p = p + 1
	**(**int8)(__ccgo_up(v2)) = 0
	return pResult + uintptr(4)
}

// C documentation
//
//	/* The core implementation of the CONCAT(...) and CONCAT_WS(SEP,...)
//	** functions.
//	**
//	** Return a string value that is the concatenation of all non-null
//	** entries in argv[].  Use zSep as the separator.
//	*/
func _concatFuncCore(tls *libc.TLS, context uintptr, argc int32, argv uintptr, nSep int32, zSep uintptr) {
	var bNotNull, i, k int32
	var j, n Ti64
	var v, z uintptr
	_, _, _, _, _, _, _ = bNotNull, i, j, k, n, v, z
	n = 0
	bNotNull = 0
	i = 0
	for {
		if !(i < argc) {
			break
		}
		n = n + int64(Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(argv + uintptr(i)*8))))
		goto _1
	_1:
		;
		i = i + 1
	}
	n = n + int64(argc-libc.Int32FromInt32(1))*int64(nSep)
	z = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(n+int64(1)))
	if z == uintptr(0) {
		Xsqlite3_result_error_nomem(tls, context)
		return
	}
	j = 0
	i = 0
	for {
		if !(i < argc) {
			break
		}
		if Xsqlite3_value_type(tls, **(**uintptr)(__ccgo_up(argv + uintptr(i)*8))) != int32(SQLITE_NULL) {
			k = Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(argv + uintptr(i)*8)))
			v = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(argv + uintptr(i)*8)))
			if v != uintptr(0) {
				if bNotNull != 0 && nSep > 0 {
					libc.Xmemcpy(tls, z+uintptr(j), zSep, libc.Uint64FromInt32(nSep))
					j = j + int64(nSep)
				}
				libc.Xmemcpy(tls, z+uintptr(j), v, libc.Uint64FromInt32(k))
				j = j + int64(k)
				bNotNull = int32(1)
			}
		}
		goto _2
	_2:
		;
		i = i + 1
	}
	**(**int8)(__ccgo_up(z + uintptr(j))) = 0
	Xsqlite3_result_text64(tls, context, z, libc.Uint64FromInt64(j), __ccgo_fp(Xsqlite3_free), uint8(SQLITE_UTF8_ZT))
}

// C documentation
//
//	/*
//	** Analyze a term that consists of two or more OR-connected
//	** subterms.  So in:
//	**
//	**     ... WHERE  (a=5) AND (b=7 OR c=9 OR d=13) AND (d=13)
//	**                          ^^^^^^^^^^^^^^^^^^^^
//	**
//	** This routine analyzes terms such as the middle term in the above example.
//	** A WhereOrTerm object is computed and attached to the term under
//	** analysis, regardless of the outcome of the analysis.  Hence:
//	**
//	**     WhereTerm.wtFlags   |=  TERM_ORINFO
//	**     WhereTerm.u.pOrInfo  =  a dynamically allocated WhereOrTerm object
//	**
//	** The term being analyzed must have two or more of OR-connected subterms.
//	** A single subterm might be a set of AND-connected sub-subterms.
//	** Examples of terms under analysis:
//	**
//	**     (A)     t1.x=t2.y OR t1.x=t2.z OR t1.y=15 OR t1.z=t3.a+5
//	**     (B)     x=expr1 OR expr2=x OR x=expr3
//	**     (C)     t1.x=t2.y OR (t1.x=t2.z AND t1.y=15)
//	**     (D)     x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*')
//	**     (E)     (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6)
//	**     (F)     x>A OR (x=A AND y>=B)
//	**
//	** CASE 1:
//	**
//	** If all subterms are of the form T.C=expr for some single column of C and
//	** a single table T (as shown in example B above) then create a new virtual
//	** term that is an equivalent IN expression.  In other words, if the term
//	** being analyzed is:
//	**
//	**      x = expr1  OR  expr2 = x  OR  x = expr3
//	**
//	** then create a new virtual term like this:
//	**
//	**      x IN (expr1,expr2,expr3)
//	**
//	** CASE 2:
//	**
//	** If there are exactly two disjuncts and one side has x>A and the other side
//	** has x=A (for the same x and A) then add a new virtual conjunct term to the
//	** WHERE clause of the form "x>=A".  Example:
//	**
//	**      x>A OR (x=A AND y>B)    adds:    x>=A
//	**
//	** The added conjunct can sometimes be helpful in query planning.
//	**
//	** CASE 3:
//	**
//	** If all subterms are indexable by a single table T, then set
//	**
//	**     WhereTerm.eOperator              =  WO_OR
//	**     WhereTerm.u.pOrInfo->indexable  |=  the cursor number for table T
//	**
//	** A subterm is "indexable" if it is of the form
//	** "T.C <op> <expr>" where C is any column of table T and
//	** <op> is one of "=", "<", "<=", ">", ">=", "IS NULL", or "IN".
//	** A subterm is also indexable if it is an AND of two or more
//	** subsubterms at least one of which is indexable.  Indexable AND
//	** subterms have their eOperator set to WO_AND and they have
//	** u.pAndInfo set to a dynamically allocated WhereAndTerm object.
//	**
//	** From another point of view, "indexable" means that the subterm could
//	** potentially be used with an index if an appropriate index exists.
//	** This analysis does not consider whether or not the index exists; that
//	** is decided elsewhere.  This analysis only looks at whether subterms
//	** appropriate for indexing exist.
//	**
//	** All examples A through E above satisfy case 3.  But if a term
//	** also satisfies case 1 (such as B) we know that the optimizer will
//	** always prefer case 1, so in that case we pretend that case 3 is not
//	** satisfied.
//	**
//	** It might be the case that multiple tables are indexable.  For example,
//	** (E) above is indexable on tables P, Q, and R.
//	**
//	** Terms that satisfy case 3 are candidates for lookup by using
//	** separate indices to find rowids for each subterm and composing
//	** the union of all rowids using a RowSet object.  This is similar
//	** to "bitmap indices" in other database engines.
//	**
//	** OTHERWISE:
//	**
//	** If none of cases 1, 2, or 3 apply, then leave the eOperator set to
//	** zero.  This term is not useful for search.
//	*/
func _exprAnalyzeOrTerm(tls *libc.TLS, pSrc uintptr, pWC uintptr, idxTerm int32) {
	var affLeft, affRight, i, iColumn, iCursor, iOne, iTwo, idxNew, j, j1, okToChngToIN, v7, v9 int32
	var b, b1, chngToIN, indexable TBitmask
	var db, pAndInfo, pAndTerm, pAndWC, pDup, pExpr, pLeft, pLeft1, pList, pNew, pOne, pOrInfo, pOrTerm, pOrWc, pOther, pParse, pTerm, pTwo, pWInfo, v1, v2 uintptr
	_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ = affLeft, affRight, b, b1, chngToIN, db, i, iColumn, iCursor, iOne, iTwo, idxNew, indexable, j, j1, okToChngToIN, pAndInfo, pAndTerm, pAndWC, pDup, pExpr, pLeft, pLeft1, pList, pNew, pOne, pOrInfo, pOrTerm, pOrWc, pOther, pParse, pTerm, pTwo, pWInfo, v1, v2, v7, v9
	pWInfo = (*TWhereClause)(unsafe.Pointer(pWC)).FpWInfo                 /* WHERE clause processing context */
	pParse = (*TWhereInfo)(unsafe.Pointer(pWInfo)).FpParse                /* Parser context */
	db = (*TParse)(unsafe.Pointer(pParse)).Fdb                            /* Database connection */
	pTerm = (*TWhereClause)(unsafe.Pointer(pWC)).Fa + uintptr(idxTerm)*56 /* The term to be analyzed */
	pExpr = (*TWhereTerm)(unsafe.Pointer(pTerm)).FpExpr                   /* Tables that are indexable, satisfying case 2 */
	/*
	 ** Break the OR clause into its separate subterms.  The subterms are
	 ** stored in a WhereClause structure containing within the WhereOrInfo
	 ** object that is attached to the original OR clause term.
	 */
	v1 = _sqlite3DbMallocZero(tls, db, uint64(496))
	pOrInfo = v1
	*(*uintptr)(unsafe.Pointer(pTerm + 32)) = v1
	if pOrInfo == uintptr(0) {
		return
	}
	v1 = pTerm + 18
	*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) | libc.Int32FromInt32(TERM_ORINFO))
	pOrWc = pOrInfo
	libc.Xmemset(tls, pOrWc+40, 0, uint64(448))
	_sqlite3WhereClauseInit(tls, pOrWc, pWInfo)
	_sqlite3WhereSplit(tls, pOrWc, pExpr, uint8(TK_OR))
	_sqlite3WhereExprAnalyze(tls, pSrc, pOrWc)
	if (*Tsqlite3)(unsafe.Pointer(db)).FmallocFailed != 0 {
		return
	}
	/*
	 ** Compute the set of tables that might satisfy cases 1 or 3.
	 */
	indexable = ^libc.Uint64FromInt32(0)
	chngToIN = ^libc.Uint64FromInt32(0)
	i = (*TWhereClause)(unsafe.Pointer(pOrWc)).FnTerm - int32(1)
	pOrTerm = (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa
	for {
		if !(i >= 0 && indexable != 0) {
			break
		}
		if libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FeOperator)&int32(WO_SINGLE) == 0 {
			chngToIN = uint64(0)
			pAndInfo = _sqlite3DbMallocRawNN(tls, db, uint64(488))
			if pAndInfo != 0 {
				b = uint64(0)
				*(*uintptr)(unsafe.Pointer(pOrTerm + 32)) = pAndInfo
				v1 = pOrTerm + 18
				*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) | libc.Int32FromInt32(TERM_ANDINFO))
				(*TWhereTerm)(unsafe.Pointer(pOrTerm)).FeOperator = uint16(WO_AND)
				(*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor = -int32(1)
				pAndWC = pAndInfo
				libc.Xmemset(tls, pAndWC+40, 0, uint64(448))
				_sqlite3WhereClauseInit(tls, pAndWC, (*TWhereClause)(unsafe.Pointer(pWC)).FpWInfo)
				_sqlite3WhereSplit(tls, pAndWC, (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr, uint8(TK_AND))
				_sqlite3WhereExprAnalyze(tls, pSrc, pAndWC)
				(*TWhereClause)(unsafe.Pointer(pAndWC)).FpOuter = pWC
				if !((*Tsqlite3)(unsafe.Pointer(db)).FmallocFailed != 0) {
					j = 0
					pAndTerm = (*TWhereClause)(unsafe.Pointer(pAndWC)).Fa
					for {
						if !(j < (*TWhereClause)(unsafe.Pointer(pAndWC)).FnTerm) {
							break
						}
						if _allowedOp(tls, libc.Int32FromUint8((*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pAndTerm)).FpExpr)).Fop)) != 0 || libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pAndTerm)).FeOperator) == int32(WO_AUX) {
							b = b | _sqlite3WhereGetMask(tls, pWInfo+592, (*TWhereTerm)(unsafe.Pointer(pAndTerm)).FleftCursor)
						}
						goto _5
					_5:
						;
						j = j + 1
						pAndTerm += 56
					}
				}
				indexable = indexable & b
			}
		} else {
			if libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FwtFlags)&int32(TERM_COPIED) != 0 {
				/* Skip this term for now.  We revisit it when we process the
				 ** corresponding TERM_VIRTUAL term */
			} else {
				b1 = _sqlite3WhereGetMask(tls, pWInfo+592, (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor)
				if libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FwtFlags)&int32(TERM_VIRTUAL) != 0 {
					pOther = (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa + uintptr((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FiParent)*56
					b1 = b1 | _sqlite3WhereGetMask(tls, pWInfo+592, (*TWhereTerm)(unsafe.Pointer(pOther)).FleftCursor)
				}
				indexable = indexable & b1
				if libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FeOperator)&int32(WO_EQ) == 0 {
					chngToIN = uint64(0)
				} else {
					chngToIN = chngToIN & b1
				}
			}
		}
		goto _3
	_3:
		;
		i = i - 1
		pOrTerm += 56
	}
	/*
	 ** Record the set of tables that satisfy case 3.  The set might be
	 ** empty.
	 */
	(*TWhereOrInfo)(unsafe.Pointer(pOrInfo)).Findexable = indexable
	(*TWhereTerm)(unsafe.Pointer(pTerm)).FeOperator = uint16(WO_OR)
	(*TWhereTerm)(unsafe.Pointer(pTerm)).FleftCursor = -int32(1)
	if indexable != 0 {
		(*TWhereClause)(unsafe.Pointer(pWC)).FhasOr = uint8(1)
	}
	/* For a two-way OR, attempt to implementation case 2.
	 */
	if indexable != 0 && (*TWhereClause)(unsafe.Pointer(pOrWc)).FnTerm == int32(2) {
		iOne = 0
		for {
			v7 = iOne
			iOne = iOne + 1
			v1 = _whereNthSubterm(tls, (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa, v7)
			pOne = v1
			if !(v1 != uintptr(0)) {
				break
			}
			iTwo = 0
			for {
				v9 = iTwo
				iTwo = iTwo + 1
				v2 = _whereNthSubterm(tls, (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa+1*56, v9)
				pTwo = v2
				if !(v2 != uintptr(0)) {
					break
				}
				_whereCombineDisjuncts(tls, pSrc, pWC, pOne, pTwo)
			}
		}
	}
	/*
	 ** chngToIN holds a set of tables that *might* satisfy case 1.  But
	 ** we have to do some additional checking to see if case 1 really
	 ** is satisfied.
	 **
	 ** chngToIN will hold either 0, 1, or 2 bits.  The 0-bit case means
	 ** that there is no possibility of transforming the OR clause into an
	 ** IN operator because one or more terms in the OR clause contain
	 ** something other than == on a column in the single table.  The 1-bit
	 ** case means that every term of the OR clause is of the form
	 ** "table.column=expr" for some single table.  The one bit that is set
	 ** will correspond to the common table.  We still need to check to make
	 ** sure the same column is used on all terms.  The 2-bit case is when
	 ** the all terms are of the form "table1.column=table2.column".  It
	 ** might be possible to form an IN operator with either table1.column
	 ** or table2.column as the LHS if either is common to every term of
	 ** the OR clause.
	 **
	 ** Note that terms of the form "table.column1=table.column2" (the
	 ** same table on both sizes of the ==) cannot be optimized.
	 */
	if chngToIN != 0 {
		okToChngToIN = 0    /* True if the conversion to IN is valid */
		iColumn = -int32(1) /* Column index on lhs of IN operator */
		iCursor = -int32(1) /* Table cursor common to all terms */
		j1 = 0              /* Loop counter */
		/* Search for a table and column that appears on one side or the
		 ** other of the == operator in every subterm.  That table and column
		 ** will be recorded in iCursor and iColumn.  There might not be any
		 ** such table and column.  Set okToChngToIN if an appropriate table
		 ** and column is found but leave okToChngToIN false if not found.
		 */
		j1 = 0
		for {
			if !(j1 < int32(2) && !(okToChngToIN != 0)) {
				break
			}
			pLeft = uintptr(0)
			pOrTerm = (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa
			i = (*TWhereClause)(unsafe.Pointer(pOrWc)).FnTerm - int32(1)
			for {
				if !(i >= 0) {
					break
				}
				v1 = pOrTerm + 18
				*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) & ^libc.Int32FromInt32(TERM_OK))
				if (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor == iCursor {
					/* This is the 2-bit case and we are on the second iteration and
					 ** current term is from the first iteration.  So skip this term. */
					goto _11
				}
				if chngToIN&_sqlite3WhereGetMask(tls, pWInfo+592, (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor) == uint64(0) {
					/* This term must be of the form t1.a==t2.b where t2 is in the
					 ** chngToIN set but t1 is not.  This term will be either preceded
					 ** or followed by an inverted copy (t2.b==t1.a).  Skip this term
					 ** and use its inversion. */
					goto _11
				}
				iColumn = (*(*struct {
					FleftColumn int32
					FiField     int32
				})(unsafe.Pointer(pOrTerm + 32))).FleftColumn
				iCursor = (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor
				pLeft = (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpLeft
				break
				goto _11
			_11:
				;
				i = i - 1
				pOrTerm += 56
			}
			if i < 0 {
				/* No candidate table+column was found.  This can only occur
				 ** on the second iteration */
				break
			}
			/* We have found a candidate table and column.  Check to see if that
			 ** table and column is common to every term in the OR clause */
			okToChngToIN = int32(1)
			for {
				if !(i >= 0 && okToChngToIN != 0) {
					break
				}
				if (*TWhereTerm)(unsafe.Pointer(pOrTerm)).FleftCursor != iCursor {
					v1 = pOrTerm + 18
					*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) & ^libc.Int32FromInt32(TERM_OK))
				} else {
					if (*(*struct {
						FleftColumn int32
						FiField     int32
					})(unsafe.Pointer(pOrTerm + 32))).FleftColumn != iColumn || iColumn == -int32(2) && _sqlite3ExprCompare(tls, pParse, (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpLeft, pLeft, -int32(1)) != 0 {
						okToChngToIN = 0
					} else {
						/* If the right-hand side is also a column, then the affinities
						 ** of both right and left sides must be such that no type
						 ** conversions are required on the right.  (Ticket #2249)
						 */
						affRight = int32(_sqlite3ExprAffinity(tls, (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpRight))
						affLeft = int32(_sqlite3ExprAffinity(tls, (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpLeft))
						if affRight != 0 && affRight != affLeft {
							okToChngToIN = 0
						} else {
							v1 = pOrTerm + 18
							*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) | libc.Int32FromInt32(TERM_OK))
						}
					}
				}
				goto _13
			_13:
				;
				i = i - 1
				pOrTerm += 56
			}
			goto _10
		_10:
			;
			j1 = j1 + 1
		}
		/* At this point, okToChngToIN is true if original pTerm satisfies
		 ** case 1.  In that case, construct a new virtual term that is
		 ** pTerm converted into an IN operator.
		 */
		if okToChngToIN != 0 { /* A transient duplicate expression */
			pList = uintptr(0)  /* The RHS of the IN operator */
			pLeft1 = uintptr(0) /* The complete IN operator */
			i = (*TWhereClause)(unsafe.Pointer(pOrWc)).FnTerm - int32(1)
			pOrTerm = (*TWhereClause)(unsafe.Pointer(pOrWc)).Fa
			for {
				if !(i >= 0) {
					break
				}
				if libc.Int32FromUint16((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FwtFlags)&int32(TERM_OK) == 0 {
					goto _16
				}
				pDup = _sqlite3ExprDup(tls, db, (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpRight, 0)
				pList = _sqlite3ExprListAppend(tls, (*TWhereInfo)(unsafe.Pointer(pWInfo)).FpParse, pList, pDup)
				pLeft1 = (*TExpr)(unsafe.Pointer((*TWhereTerm)(unsafe.Pointer(pOrTerm)).FpExpr)).FpLeft
				goto _16
			_16:
				;
				i = i - 1
				pOrTerm += 56
			}
			pDup = _sqlite3ExprDup(tls, db, pLeft1, 0)
			pNew = _sqlite3PExpr(tls, pParse, int32(TK_IN), pDup, uintptr(0))
			if pNew != 0 {
				_transferJoinMarkings(tls, pNew, pExpr)
				*(*uintptr)(unsafe.Pointer(pNew + 32)) = pList
				idxNew = _whereClauseInsert(tls, pWC, pNew, libc.Uint16FromInt32(libc.Int32FromInt32(TERM_VIRTUAL)|libc.Int32FromInt32(TERM_DYNAMIC)))
				_exprAnalyze(tls, pSrc, pWC, idxNew)
				/* pTerm = &pWC->a[idxTerm]; // would be needed if pTerm where reused */
				_markTermAsChild(tls, pWC, idxNew, idxTerm)
			} else {
				_sqlite3ExprListDelete(tls, db, pList)
			}
		}
	}
}

// C documentation
//
//	/*
//	** Gobble up the first bareword or quoted word from the input buffer zIn.
//	** Return a pointer to the character immediately following the last in
//	** the gobbled word if successful, or a NULL pointer otherwise (failed
//	** to find close-quote character).
//	**
//	** Before returning, set pzOut to point to a new buffer containing a
//	** nul-terminated, dequoted copy of the gobbled word. If the word was
//	** quoted, *pbQuoted is also set to 1 before returning.
//	**
//	** If *pRc is other than SQLITE_OK when this function is called, it is
//	** a no-op (NULL is returned). Otherwise, if an OOM occurs within this
//	** function, *pRc is set to SQLITE_NOMEM before returning. *pRc is *not*
//	** set if a parse error (failed to find close quote) occurs.
//	*/
func _fts5ConfigGobbleWord(tls *libc.TLS, pRc uintptr, zIn uintptr, pzOut uintptr, pbQuoted uintptr) (r uintptr) {
	var ii int32
	var nIn Tsqlite3_int64
	var zOut, zRet uintptr
	_, _, _, _ = ii, nIn, zOut, zRet
	zRet = uintptr(0)
	nIn = libc.Int64FromUint64(libc.Xstrlen(tls, zIn))
	zOut = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(nIn+int64(1)))
	**(**int32)(__ccgo_up(pbQuoted)) = 0
	**(**uintptr)(__ccgo_up(pzOut)) = uintptr(0)
	if zOut == uintptr(0) {
		**(**int32)(__ccgo_up(pRc)) = int32(SQLITE_NOMEM)
	} else {
		libc.Xmemcpy(tls, zOut, zIn, libc.Uint64FromInt64(nIn+libc.Int64FromInt32(1)))
		if _fts5_isopenquote(tls, **(**int8)(__ccgo_up(zOut))) != 0 {
			ii = _fts5Dequote(tls, zOut)
			zRet = zIn + uintptr(ii)
			**(**int32)(__ccgo_up(pbQuoted)) = int32(1)
		} else {
			zRet = _fts5ConfigSkipBareword(tls, zIn)
			if zRet != 0 {
				**(**int8)(__ccgo_up(zOut + uintptr(int64(zRet)-int64(zIn)))) = int8('\000')
			}
		}
	}
	if zRet == uintptr(0) {
		Xsqlite3_free(tls, zOut)
	} else {
		**(**uintptr)(__ccgo_up(pzOut)) = zOut
	}
	return zRet
}

// C documentation
//
//	/*
//	** Implementation of fts5_locale(LOCALE, TEXT) function.
//	**
//	** If parameter LOCALE is NULL, or a zero-length string, then a copy of
//	** TEXT is returned. Otherwise, both LOCALE and TEXT are interpreted as
//	** text, and the value returned is a blob consisting of:
//	**
//	**     * The 4 bytes 0x00, 0xE0, 0xB2, 0xEb (FTS5_LOCALE_HEADER).
//	**     * The LOCALE, as utf-8 text, followed by
//	**     * 0x00, followed by
//	**     * The TEXT, as utf-8 text.
//	**
//	** There is no final nul-terminator following the TEXT value.
//	*/
func _fts5LocaleFunc(tls *libc.TLS, pCtx uintptr, nArg int32, apArg uintptr) {
	var nBlob, nLocale, nText Ti64
	var p, pBlob, pCsr, zLocale, zText, v1 uintptr
	_, _, _, _, _, _, _, _, _ = nBlob, nLocale, nText, p, pBlob, pCsr, zLocale, zText, v1
	zLocale = uintptr(0)
	nLocale = 0
	zText = uintptr(0)
	nText = 0
	_ = nArg
	zLocale = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(apArg)))
	nLocale = int64(Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(apArg))))
	zText = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(apArg + 1*8)))
	nText = int64(Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(apArg + 1*8))))
	if zLocale == uintptr(0) || int32(**(**int8)(__ccgo_up(zLocale))) == int32('\000') {
		Xsqlite3_result_text(tls, pCtx, zText, int32(nText), uintptr(-libc.Int32FromInt32(1)))
	} else {
		p = Xsqlite3_user_data(tls, pCtx)
		pBlob = uintptr(0)
		pCsr = uintptr(0)
		nBlob = 0
		nBlob = int64(libc.Int32FromInt64(16)) + nLocale + int64(1) + nText
		pBlob = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(nBlob))
		if pBlob == uintptr(0) {
			Xsqlite3_result_error_nomem(tls, pCtx)
			return
		}
		pCsr = pBlob
		libc.Xmemcpy(tls, pCsr, p+96, libc.Uint64FromInt32(libc.Int32FromInt64(16)))
		pCsr = pCsr + uintptr(libc.Int32FromInt64(16))
		libc.Xmemcpy(tls, pCsr, zLocale, libc.Uint64FromInt64(nLocale))
		pCsr = pCsr + uintptr(nLocale)
		v1 = pCsr
		pCsr = pCsr + 1
		**(**Tu8)(__ccgo_up(v1)) = uint8(0x00)
		if zText != 0 {
			libc.Xmemcpy(tls, pCsr, zText, libc.Uint64FromInt64(nText))
		}
		Xsqlite3_result_blob(tls, pCtx, pBlob, int32(nBlob), __ccgo_fp(Xsqlite3_free))
	}
}

func _fts5PorterCb(tls *libc.TLS, pCtx uintptr, tflags int32, pToken uintptr, nToken int32, iStart int32, iEnd int32) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var aBuf, p uintptr
	var c int8
	var v1 int32
	var _ /* nBuf at bp+0 */ int32
	_, _, _, _ = aBuf, c, p, v1
	p = pCtx
	if nToken > int32(FTS5_PORTER_MAX_TOKEN) || nToken < int32(3) {
		goto pass_through
	}
	aBuf = (*TPorterContext)(unsafe.Pointer(p)).FaBuf
	**(**int32)(__ccgo_up(bp)) = nToken
	libc.Xmemcpy(tls, aBuf, pToken, libc.Uint64FromInt32(**(**int32)(__ccgo_up(bp))))
	/* Step 1. */
	_fts5PorterStep1A(tls, aBuf, bp)
	if _fts5PorterStep1B(tls, aBuf, bp) != 0 {
		if _fts5PorterStep1B2(tls, aBuf, bp) == 0 {
			c = **(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(1))))
			if _fts5PorterIsVowel(tls, c, 0) == 0 && int32(c) != int32('l') && int32(c) != int32('s') && int32(c) != int32('z') && int32(c) == int32(**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(2))))) {
				**(**int32)(__ccgo_up(bp)) = **(**int32)(__ccgo_up(bp)) - 1
			} else {
				if _fts5Porter_MEq1(tls, aBuf, **(**int32)(__ccgo_up(bp))) != 0 && _fts5Porter_Ostar(tls, aBuf, **(**int32)(__ccgo_up(bp))) != 0 {
					v1 = **(**int32)(__ccgo_up(bp))
					**(**int32)(__ccgo_up(bp)) = **(**int32)(__ccgo_up(bp)) + 1
					**(**int8)(__ccgo_up(aBuf + uintptr(v1))) = int8('e')
				}
			}
		}
	}
	/* Step 1C. */
	if int32(**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(1))))) == int32('y') && _fts5Porter_Vowel(tls, aBuf, **(**int32)(__ccgo_up(bp))-int32(1)) != 0 {
		**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(1)))) = int8('i')
	}
	/* Steps 2 through 4. */
	_fts5PorterStep2(tls, aBuf, bp)
	_fts5PorterStep3(tls, aBuf, bp)
	_fts5PorterStep4(tls, aBuf, bp)
	/* Step 5a. */
	if int32(**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(1))))) == int32('e') {
		if _fts5Porter_MGt1(tls, aBuf, **(**int32)(__ccgo_up(bp))-int32(1)) != 0 || _fts5Porter_MEq1(tls, aBuf, **(**int32)(__ccgo_up(bp))-int32(1)) != 0 && !(_fts5Porter_Ostar(tls, aBuf, **(**int32)(__ccgo_up(bp))-int32(1)) != 0) {
			**(**int32)(__ccgo_up(bp)) = **(**int32)(__ccgo_up(bp)) - 1
		}
	}
	/* Step 5b. */
	if **(**int32)(__ccgo_up(bp)) > int32(1) && int32(**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(1))))) == int32('l') && int32(**(**int8)(__ccgo_up(aBuf + uintptr(**(**int32)(__ccgo_up(bp))-int32(2))))) == int32('l') && _fts5Porter_MGt1(tls, aBuf, **(**int32)(__ccgo_up(bp))-int32(1)) != 0 {
		**(**int32)(__ccgo_up(bp)) = **(**int32)(__ccgo_up(bp)) - 1
	}
	return (*(*func(*libc.TLS, uintptr, int32, uintptr, int32, int32, int32) int32)(unsafe.Pointer(&struct{ uintptr }{(*TPorterContext)(unsafe.Pointer(p)).FxToken})))(tls, (*TPorterContext)(unsafe.Pointer(p)).FpCtx, tflags, aBuf, **(**int32)(__ccgo_up(bp)), iStart, iEnd)
	goto pass_through
pass_through:
	;
	return (*(*func(*libc.TLS, uintptr, int32, uintptr, int32, int32, int32) int32)(unsafe.Pointer(&struct{ uintptr }{(*TPorterContext)(unsafe.Pointer(p)).FxToken})))(tls, (*TPorterContext)(unsafe.Pointer(p)).FpCtx, tflags, pToken, nToken, iStart, iEnd)
	return r
}

// C documentation
//
//	/*
//	** Trigram tokenizer tokenize routine.
//	*/
func _fts5TriTokenize(tls *libc.TLS, pTok uintptr, pCtx uintptr, unusedFlags int32, pText uintptr, nText int32, __ccgo_fp_xToken uintptr) (r int32) {
	bp := tls.Alloc(32)
	defer tls.Free(32)
	var aStart [3]int32
	var iCode Tu32
	var iNext, ii, rc int32
	var p, z1, zEof, zIn, zOut, v1 uintptr
	var _ /* aBuf at bp+0 */ [32]int8
	_, _, _, _, _, _, _, _, _, _, _ = aStart, iCode, iNext, ii, p, rc, z1, zEof, zIn, zOut, v1
	p = pTok
	rc = SQLITE_OK
	zOut = bp
	zIn = pText
	if zIn != 0 {
		v1 = zIn + uintptr(nText)
	} else {
		v1 = uintptr(0)
	}
	zEof = v1
	iCode = uint32(0) /* Input offset of each character in aBuf[] */
	_ = unusedFlags
	/* Populate aBuf[] with the characters for the first trigram. */
	ii = 0
	for {
		if !(ii < int32(3)) {
			break
		}
		for cond := true; cond; cond = iCode == uint32(0) {
			aStart[ii] = int32(int64(zIn) - int64(pText))
			if zIn >= zEof {
				return SQLITE_OK
			}
			v1 = zIn
			zIn = zIn + 1
			iCode = uint32(**(**uint8)(__ccgo_up(v1)))
			if iCode >= uint32(0xc0) {
				iCode = uint32(_sqlite3Utf8Trans1[iCode-uint32(0xc0)])
				for zIn < zEof && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zIn)))&int32(0xc0) == int32(0x80) {
					v1 = zIn
					zIn = zIn + 1
					iCode = iCode<<libc.Int32FromInt32(6) + libc.Uint32FromInt32(libc.Int32FromInt32(0x3f)&libc.Int32FromUint8(**(**uint8)(__ccgo_up(v1))))
				}
				if iCode < uint32(0x80) || iCode&uint32(0xFFFFF800) == uint32(0xD800) || iCode&uint32(0xFFFFFFFE) == uint32(0xFFFE) {
					iCode = uint32(0xFFFD)
				}
			}
			if (*TTrigramTokenizer)(unsafe.Pointer(p)).FbFold != 0 {
				iCode = libc.Uint32FromInt32(_sqlite3Fts5UnicodeFold(tls, libc.Int32FromUint32(iCode), (*TTrigramTokenizer)(unsafe.Pointer(p)).FiFoldParam))
			}
		}
		if iCode < uint32(0x00080) {
			v1 = zOut
			zOut = zOut + 1
			**(**int8)(__ccgo_up(v1)) = libc.Int8FromUint8(uint8(iCode & libc.Uint32FromInt32(0xFF)))
		} else {
			if iCode < uint32(0x00800) {
				v1 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v1)) = int8(int32(0xC0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x1F))))
				v1 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
			} else {
				if iCode < uint32(0x10000) {
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0xE0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x0F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				} else {
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0xF0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(18)&libc.Uint32FromInt32(0x07))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				}
			}
		}
		goto _2
	_2:
		;
		ii = ii + 1
	}
	/* At the start of each iteration of this loop:
	 **
	 **  aBuf:      Contains 3 characters. The 3 characters of the next trigram.
	 **  zOut:      Points to the byte following the last character in aBuf.
	 **  aStart[3]: Contains the byte offset in the input text corresponding
	 **             to the start of each of the three characters in the buffer.
	 */
	for int32(1) != 0 {
		/* Read characters from the input up until the first non-diacritic */
		for cond := true; cond; cond = iCode == uint32(0) {
			iNext = int32(int64(zIn) - int64(pText))
			if zIn >= zEof {
				iCode = uint32(0)
				break
			}
			v1 = zIn
			zIn = zIn + 1
			iCode = uint32(**(**uint8)(__ccgo_up(v1)))
			if iCode >= uint32(0xc0) {
				iCode = uint32(_sqlite3Utf8Trans1[iCode-uint32(0xc0)])
				for zIn < zEof && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zIn)))&int32(0xc0) == int32(0x80) {
					v1 = zIn
					zIn = zIn + 1
					iCode = iCode<<libc.Int32FromInt32(6) + libc.Uint32FromInt32(libc.Int32FromInt32(0x3f)&libc.Int32FromUint8(**(**uint8)(__ccgo_up(v1))))
				}
				if iCode < uint32(0x80) || iCode&uint32(0xFFFFF800) == uint32(0xD800) || iCode&uint32(0xFFFFFFFE) == uint32(0xFFFE) {
					iCode = uint32(0xFFFD)
				}
			}
			if (*TTrigramTokenizer)(unsafe.Pointer(p)).FbFold != 0 {
				iCode = libc.Uint32FromInt32(_sqlite3Fts5UnicodeFold(tls, libc.Int32FromUint32(iCode), (*TTrigramTokenizer)(unsafe.Pointer(p)).FiFoldParam))
			}
		}
		/* Pass the current trigram back to fts5 */
		rc = (*(*func(*libc.TLS, uintptr, int32, uintptr, int32, int32, int32) int32)(unsafe.Pointer(&struct{ uintptr }{__ccgo_fp_xToken})))(tls, pCtx, 0, bp, int32(int64(zOut)-t__predefined_ptrdiff_t(bp)), aStart[0], iNext)
		if iCode == uint32(0) || rc != SQLITE_OK {
			break
		}
		/* Remove the first character from buffer aBuf[]. Append the character
		 ** with codepoint iCode.  */
		z1 = bp
		v1 = z1
		z1 = z1 + 1
		if libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(v1)))) >= int32(0xc0) {
			for libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z1))))&int32(0xc0) == int32(0x80) {
				z1 = z1 + 1
			}
		}
		libc.Xmemmove(tls, bp, z1, libc.Uint64FromInt64(int64(zOut)-int64(z1)))
		zOut = zOut - uintptr(int64(z1)-t__predefined_ptrdiff_t(bp))
		if iCode < uint32(0x00080) {
			v1 = zOut
			zOut = zOut + 1
			**(**int8)(__ccgo_up(v1)) = libc.Int8FromUint8(uint8(iCode & libc.Uint32FromInt32(0xFF)))
		} else {
			if iCode < uint32(0x00800) {
				v1 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v1)) = int8(int32(0xC0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x1F))))
				v1 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
			} else {
				if iCode < uint32(0x10000) {
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0xE0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x0F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				} else {
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0xF0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(18)&libc.Uint32FromInt32(0x07))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v1 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				}
			}
		}
		/* Update the aStart[] array */
		aStart[0] = aStart[int32(1)]
		aStart[int32(1)] = aStart[int32(2)]
		aStart[int32(2)] = iNext
	}
	return rc
}

func _fts5UnicodeTokenize(tls *libc.TLS, pTokenizer uintptr, pCtx uintptr, iUnused int32, pText uintptr, nText int32, __ccgo_fp_xToken uintptr) (r int32) {
	var a, aFold, p, pEnd, zCsr, zOut, zTerm, v3 uintptr
	var iCode Tu32
	var ie, is, nFold, rc, v7 int32
	_, _, _, _, _, _, _, _, _, _, _, _, _, _ = a, aFold, iCode, ie, is, nFold, p, pEnd, rc, zCsr, zOut, zTerm, v3, v7
	p = pTokenizer
	rc = SQLITE_OK
	a = p
	zTerm = pText + uintptr(nText)
	zCsr = pText
	/* Output buffer */
	aFold = (*TUnicode61Tokenizer)(unsafe.Pointer(p)).FaFold
	nFold = (*TUnicode61Tokenizer)(unsafe.Pointer(p)).FnFold
	pEnd = aFold + uintptr(nFold-int32(6))
	_ = iUnused
	/* Each iteration of this loop gobbles up a contiguous run of separators,
	 ** then the next token.  */
_2:
	;
	if !(rc == SQLITE_OK) {
		goto _1
	} /* non-ASCII codepoint read from input */
	zOut = aFold
	/* Skip any separator characters. */
	for int32(1) != 0 {
		if zCsr >= zTerm {
			goto tokenize_done
		}
		if libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr)))&int32(0x80) != 0 {
			/* A character outside of the ascii range. Skip past it if it is
			 ** a separator character. Or break out of the loop if it is not. */
			is = int32(int64(zCsr) - int64(pText))
			v3 = zCsr
			zCsr = zCsr + 1
			iCode = uint32(**(**uint8)(__ccgo_up(v3)))
			if iCode >= uint32(0xc0) {
				iCode = uint32(_sqlite3Utf8Trans1[iCode-uint32(0xc0)])
				for zCsr < zTerm && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr)))&int32(0xc0) == int32(0x80) {
					v3 = zCsr
					zCsr = zCsr + 1
					iCode = iCode<<libc.Int32FromInt32(6) + libc.Uint32FromInt32(libc.Int32FromInt32(0x3f)&libc.Int32FromUint8(**(**uint8)(__ccgo_up(v3))))
				}
				if iCode < uint32(0x80) || iCode&uint32(0xFFFFF800) == uint32(0xD800) || iCode&uint32(0xFFFFFFFE) == uint32(0xFFFE) {
					iCode = uint32(0xFFFD)
				}
			}
			if _fts5UnicodeIsAlnum(tls, p, libc.Int32FromUint32(iCode)) != 0 {
				goto non_ascii_tokenchar
			}
		} else {
			if **(**uint8)(__ccgo_up(a + uintptr(**(**uint8)(__ccgo_up(zCsr))))) != 0 {
				is = int32(int64(zCsr) - int64(pText))
				goto ascii_tokenchar
			}
			zCsr = zCsr + 1
		}
	}
	/* Run through the tokenchars. Fold them into the output buffer along
	 ** the way.  */
_6:
	;
	if !(zCsr < zTerm) {
		goto _5
	}
	/* Grow the output buffer so that there is sufficient space to fit the
	 ** largest possible utf-8 character.  */
	if zOut > pEnd {
		aFold = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(int64(nFold)*int64(2)))
		if aFold == uintptr(0) {
			rc = int32(SQLITE_NOMEM)
			goto tokenize_done
		}
		zOut = aFold + uintptr(int64(zOut)-int64((*TUnicode61Tokenizer)(unsafe.Pointer(p)).FaFold))
		libc.Xmemcpy(tls, aFold, (*TUnicode61Tokenizer)(unsafe.Pointer(p)).FaFold, libc.Uint64FromInt32(nFold))
		Xsqlite3_free(tls, (*TUnicode61Tokenizer)(unsafe.Pointer(p)).FaFold)
		(*TUnicode61Tokenizer)(unsafe.Pointer(p)).FaFold = aFold
		v7 = nFold * libc.Int32FromInt32(2)
		nFold = v7
		(*TUnicode61Tokenizer)(unsafe.Pointer(p)).FnFold = v7
		pEnd = aFold + uintptr(nFold-int32(6))
	}
	if !(libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr)))&int32(0x80) != 0) {
		goto _8
	}
	/* An non-ascii-range character. Fold it into the output buffer if
	 ** it is a token character, or break out of the loop if it is not. */
	v3 = zCsr
	zCsr = zCsr + 1
	iCode = uint32(**(**uint8)(__ccgo_up(v3)))
	if iCode >= uint32(0xc0) {
		iCode = uint32(_sqlite3Utf8Trans1[iCode-uint32(0xc0)])
		for zCsr < zTerm && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr)))&int32(0xc0) == int32(0x80) {
			v3 = zCsr
			zCsr = zCsr + 1
			iCode = iCode<<libc.Int32FromInt32(6) + libc.Uint32FromInt32(libc.Int32FromInt32(0x3f)&libc.Int32FromUint8(**(**uint8)(__ccgo_up(v3))))
		}
		if iCode < uint32(0x80) || iCode&uint32(0xFFFFF800) == uint32(0xD800) || iCode&uint32(0xFFFFFFFE) == uint32(0xFFFE) {
			iCode = uint32(0xFFFD)
		}
	}
	if !(_fts5UnicodeIsAlnum(tls, p, libc.Int32FromUint32(iCode)) != 0 || _sqlite3Fts5UnicodeIsdiacritic(tls, libc.Int32FromUint32(iCode)) != 0) {
		goto _12
	}
	goto non_ascii_tokenchar
non_ascii_tokenchar:
	;
	iCode = libc.Uint32FromInt32(_sqlite3Fts5UnicodeFold(tls, libc.Int32FromUint32(iCode), (*TUnicode61Tokenizer)(unsafe.Pointer(p)).FeRemoveDiacritic))
	if iCode != 0 {
		if iCode < uint32(0x00080) {
			v3 = zOut
			zOut = zOut + 1
			**(**int8)(__ccgo_up(v3)) = libc.Int8FromUint8(uint8(iCode & libc.Uint32FromInt32(0xFF)))
		} else {
			if iCode < uint32(0x00800) {
				v3 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v3)) = int8(int32(0xC0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x1F))))
				v3 = zOut
				zOut = zOut + 1
				**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
			} else {
				if iCode < uint32(0x10000) {
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0xE0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x0F))))
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				} else {
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0xF0) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(18)&libc.Uint32FromInt32(0x07))))
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x3F))))
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3F))))
					v3 = zOut
					zOut = zOut + 1
					**(**int8)(__ccgo_up(v3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(iCode&libc.Uint32FromInt32(0x3F))))
				}
			}
		}
	}
	goto _13
_12:
	;
	goto _5
_13:
	;
	goto _9
_8:
	;
	if !(libc.Int32FromUint8(**(**uint8)(__ccgo_up(a + uintptr(**(**uint8)(__ccgo_up(zCsr)))))) == 0) {
		goto _24
	}
	/* An ascii-range separator character. End of token. */
	goto _5
	goto _25
_24:
	;
	goto ascii_tokenchar
ascii_tokenchar:
	;
	if libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr))) >= int32('A') && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr))) <= int32('Z') {
		v3 = zOut
		zOut = zOut + 1
		**(**int8)(__ccgo_up(v3)) = int8(libc.Int32FromUint8(**(**uint8)(__ccgo_up(zCsr))) + int32(32))
	} else {
		v3 = zOut
		zOut = zOut + 1
		**(**int8)(__ccgo_up(v3)) = libc.Int8FromUint8(**(**uint8)(__ccgo_up(zCsr)))
	}
	zCsr = zCsr + 1
_25:
	;
_9:
	;
	ie = int32(int64(zCsr) - int64(pText))
	goto _6
_5:
	;
	/* Invoke the token callback */
	rc = (*(*func(*libc.TLS, uintptr, int32, uintptr, int32, int32, int32) int32)(unsafe.Pointer(&struct{ uintptr }{__ccgo_fp_xToken})))(tls, pCtx, 0, aFold, int32(int64(zOut)-int64(aFold)), is, ie)
	goto _2
_1:
	;
	goto tokenize_done
tokenize_done:
	;
	if rc == int32(SQLITE_DONE) {
		rc = SQLITE_OK
	}
	return rc
}

/**************************************************************************
** Start of porter stemmer implementation.
 */

/* Any tokens larger than this (in bytes) are passed through without
** stemming. */

// C documentation
//
//	/*
//	** If the input is a well-formed JSON array of coordinates with at least
//	** four coordinates and where each coordinate is itself a two-value array,
//	** then convert the JSON into a GeoPoly object and return a pointer to
//	** that object.
//	**
//	** If any error occurs, return NULL.
//	*/
func _geopolyParseJson(tls *libc.TLS, z uintptr, pRc uintptr) (r uintptr) {
	bp := tls.Alloc(48)
	defer tls.Free(48)
	var aNew, pOut, v1 uintptr
	var c int8
	var ii, rc int32
	var v2 bool
	var _ /* s at bp+0 */ TGeoParse
	var _ /* x at bp+32 */ int32
	_, _, _, _, _, _, _ = aNew, c, ii, pOut, rc, v1, v2
	rc = SQLITE_OK
	libc.Xmemset(tls, bp, 0, uint64(32))
	(**(**TGeoParse)(__ccgo_up(bp))).Fz = z
	if int32(_geopolySkipSpace(tls, bp)) == int32('[') {
		(**(**TGeoParse)(__ccgo_up(bp))).Fz = (**(**TGeoParse)(__ccgo_up(bp))).Fz + 1
		for int32(_geopolySkipSpace(tls, bp)) == int32('[') {
			ii = 0
			(**(**TGeoParse)(__ccgo_up(bp))).Fz = (**(**TGeoParse)(__ccgo_up(bp))).Fz + 1
			if (**(**TGeoParse)(__ccgo_up(bp))).FnVertex >= (**(**TGeoParse)(__ccgo_up(bp))).FnAlloc {
				(**(**TGeoParse)(__ccgo_up(bp))).FnAlloc = (**(**TGeoParse)(__ccgo_up(bp))).FnAlloc*int32(2) + int32(16)
				aNew = Xsqlite3_realloc64(tls, (**(**TGeoParse)(__ccgo_up(bp))).Fa, uint64(libc.Uint64FromInt32((**(**TGeoParse)(__ccgo_up(bp))).FnAlloc)*uint64(4)*uint64(2)))
				if aNew == uintptr(0) {
					rc = int32(SQLITE_NOMEM)
					(**(**TGeoParse)(__ccgo_up(bp))).FnErr = (**(**TGeoParse)(__ccgo_up(bp))).FnErr + 1
					break
				}
				(**(**TGeoParse)(__ccgo_up(bp))).Fa = aNew
			}
			for {
				if ii <= int32(1) {
					v1 = (**(**TGeoParse)(__ccgo_up(bp))).Fa + uintptr((**(**TGeoParse)(__ccgo_up(bp))).FnVertex*int32(2)+ii)*4
				} else {
					v1 = uintptr(0)
				}
				if !(_geopolyParseNumber(tls, bp, v1) != 0) {
					break
				}
				ii = ii + 1
				if ii == int32(2) {
					(**(**TGeoParse)(__ccgo_up(bp))).FnVertex = (**(**TGeoParse)(__ccgo_up(bp))).FnVertex + 1
				}
				c = _geopolySkipSpace(tls, bp)
				(**(**TGeoParse)(__ccgo_up(bp))).Fz = (**(**TGeoParse)(__ccgo_up(bp))).Fz + 1
				if int32(c) == int32(',') {
					continue
				}
				if int32(c) == int32(']') && ii >= int32(2) {
					break
				}
				(**(**TGeoParse)(__ccgo_up(bp))).FnErr = (**(**TGeoParse)(__ccgo_up(bp))).FnErr + 1
				rc = int32(SQLITE_ERROR)
				goto parse_json_err
			}
			if int32(_geopolySkipSpace(tls, bp)) == int32(',') {
				(**(**TGeoParse)(__ccgo_up(bp))).Fz = (**(**TGeoParse)(__ccgo_up(bp))).Fz + 1
				continue
			}
			break
		}
		if v2 = int32(_geopolySkipSpace(tls, bp)) == int32(']') && (**(**TGeoParse)(__ccgo_up(bp))).FnVertex >= int32(4) && **(**TGeoCoord)(__ccgo_up((**(**TGeoParse)(__ccgo_up(bp))).Fa)) == **(**TGeoCoord)(__ccgo_up((**(**TGeoParse)(__ccgo_up(bp))).Fa + uintptr((**(**TGeoParse)(__ccgo_up(bp))).FnVertex*int32(2)-int32(2))*4)) && **(**TGeoCoord)(__ccgo_up((**(**TGeoParse)(__ccgo_up(bp))).Fa + 1*4)) == **(**TGeoCoord)(__ccgo_up((**(**TGeoParse)(__ccgo_up(bp))).Fa + uintptr((**(**TGeoParse)(__ccgo_up(bp))).FnVertex*int32(2)-int32(1))*4)); v2 {
			(**(**TGeoParse)(__ccgo_up(bp))).Fz = (**(**TGeoParse)(__ccgo_up(bp))).Fz + 1
		}
		if v2 && int32(_geopolySkipSpace(tls, bp)) == libc.Int32FromInt32(0) {
			**(**int32)(__ccgo_up(bp + 32)) = int32(1)
			(**(**TGeoParse)(__ccgo_up(bp))).FnVertex = (**(**TGeoParse)(__ccgo_up(bp))).FnVertex - 1 /* Remove the redundant vertex at the end */
			pOut = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(40)+uint64(libc.Uint64FromInt64(4)*libc.Uint64FromInt32(2))*libc.Uint64FromInt64(int64((**(**TGeoParse)(__ccgo_up(bp))).FnVertex)-libc.Int64FromInt32(4)))
			**(**int32)(__ccgo_up(bp + 32)) = int32(1)
			if pOut == uintptr(0) {
				goto parse_json_err
			}
			(*TGeoPoly)(unsafe.Pointer(pOut)).FnVertex = (**(**TGeoParse)(__ccgo_up(bp))).FnVertex
			libc.Xmemcpy(tls, pOut+8, (**(**TGeoParse)(__ccgo_up(bp))).Fa, libc.Uint64FromInt32((**(**TGeoParse)(__ccgo_up(bp))).FnVertex*int32(2))*uint64(4))
			**(**uint8)(__ccgo_up(pOut + 4)) = **(**uint8)(__ccgo_up(bp + 32))
			**(**uint8)(__ccgo_up(pOut + 4 + 1)) = libc.Uint8FromInt32((**(**TGeoParse)(__ccgo_up(bp))).FnVertex >> int32(16) & int32(0xff))
			**(**uint8)(__ccgo_up(pOut + 4 + 2)) = libc.Uint8FromInt32((**(**TGeoParse)(__ccgo_up(bp))).FnVertex >> int32(8) & int32(0xff))
			**(**uint8)(__ccgo_up(pOut + 4 + 3)) = libc.Uint8FromInt32((**(**TGeoParse)(__ccgo_up(bp))).FnVertex & int32(0xff))
			Xsqlite3_free(tls, (**(**TGeoParse)(__ccgo_up(bp))).Fa)
			if pRc != 0 {
				**(**int32)(__ccgo_up(pRc)) = SQLITE_OK
			}
			return pOut
		} else {
			(**(**TGeoParse)(__ccgo_up(bp))).FnErr = (**(**TGeoParse)(__ccgo_up(bp))).FnErr + 1
			rc = int32(SQLITE_ERROR)
		}
	}
	goto parse_json_err
parse_json_err:
	;
	if pRc != 0 {
		**(**int32)(__ccgo_up(pRc)) = rc
	}
	Xsqlite3_free(tls, (**(**TGeoParse)(__ccgo_up(bp))).Fa)
	return uintptr(0)
}

// C documentation
//
//	/* Append the N-byte string in zIn to the end of the JsonString string
//	** under construction.  Enclose the string in double-quotes ("...") and
//	** escape any double-quotes or backslash characters contained within the
//	** string.
//	**
//	** This routine is a high-runner.  There is a measurable performance
//	** increase associated with unwinding the jsonIsOk[] loop.
//	*/
func _jsonAppendString(tls *libc.TLS, p uintptr, zIn uintptr, N Tu32) {
	var c Tu8
	var k Tu32
	var z, v2 uintptr
	var v1 Tu64
	_, _, _, _, _ = c, k, z, v1, v2
	z = zIn
	if z == uintptr(0) {
		return
	}
	if uint64(N)+(*TJsonString)(unsafe.Pointer(p)).FnUsed+uint64(2) >= (*TJsonString)(unsafe.Pointer(p)).FnAlloc && _jsonStringGrow(tls, p, N+uint32(2)) != 0 {
		return
	}
	v2 = p + 24
	v1 = *(*Tu64)(unsafe.Pointer(v2))
	*(*Tu64)(unsafe.Pointer(v2)) = *(*Tu64)(unsafe.Pointer(v2)) + 1
	**(**int8)(__ccgo_up((*TJsonString)(unsafe.Pointer(p)).FzBuf + uintptr(v1))) = int8('"')
	for int32(1) != 0 {
		k = uint32(0)
		/* The following while() is the 4-way unwound equivalent of
		 **
		 **     while( k<N && jsonIsOk[z[k]] ){ k++; }
		 */
		for int32(1) != 0 {
			if k+uint32(3) >= N {
				for k < N && _jsonIsOk[**(**Tu8)(__ccgo_up(z + uintptr(k)))] != 0 {
					k = k + 1
				}
				break
			}
			if !(_jsonIsOk[**(**Tu8)(__ccgo_up(z + uintptr(k)))] != 0) {
				break
			}
			if !(_jsonIsOk[**(**Tu8)(__ccgo_up(z + uintptr(k+uint32(1))))] != 0) {
				k = k + uint32(1)
				break
			}
			if !(_jsonIsOk[**(**Tu8)(__ccgo_up(z + uintptr(k+uint32(2))))] != 0) {
				k = k + uint32(2)
				break
			}
			if !(_jsonIsOk[**(**Tu8)(__ccgo_up(z + uintptr(k+uint32(3))))] != 0) {
				k = k + uint32(3)
				break
			} else {
				k = k + uint32(4)
			}
		}
		if k >= N {
			if k > uint32(0) {
				libc.Xmemcpy(tls, (*TJsonString)(unsafe.Pointer(p)).FzBuf+uintptr((*TJsonString)(unsafe.Pointer(p)).FnUsed), z, uint64(k))
				**(**Tu64)(__ccgo_up(p + 24)) += uint64(k)
			}
			break
		}
		if k > uint32(0) {
			libc.Xmemcpy(tls, (*TJsonString)(unsafe.Pointer(p)).FzBuf+uintptr((*TJsonString)(unsafe.Pointer(p)).FnUsed), z, uint64(k))
			**(**Tu64)(__ccgo_up(p + 24)) += uint64(k)
			z = z + uintptr(k)
			N = N - k
		}
		c = **(**Tu8)(__ccgo_up(z))
		if libc.Int32FromUint8(c) == int32('"') || libc.Int32FromUint8(c) == int32('\\') {
			if (*TJsonString)(unsafe.Pointer(p)).FnUsed+uint64(N)+uint64(3) > (*TJsonString)(unsafe.Pointer(p)).FnAlloc && _jsonStringGrow(tls, p, N+uint32(3)) != 0 {
				return
			}
			v2 = p + 24
			v1 = *(*Tu64)(unsafe.Pointer(v2))
			*(*Tu64)(unsafe.Pointer(v2)) = *(*Tu64)(unsafe.Pointer(v2)) + 1
			**(**int8)(__ccgo_up((*TJsonString)(unsafe.Pointer(p)).FzBuf + uintptr(v1))) = int8('\\')
			v2 = p + 24
			v1 = *(*Tu64)(unsafe.Pointer(v2))
			*(*Tu64)(unsafe.Pointer(v2)) = *(*Tu64)(unsafe.Pointer(v2)) + 1
			**(**int8)(__ccgo_up((*TJsonString)(unsafe.Pointer(p)).FzBuf + uintptr(v1))) = libc.Int8FromUint8(c)
		} else {
			if libc.Int32FromUint8(c) == int32('\'') {
				v2 = p + 24
				v1 = *(*Tu64)(unsafe.Pointer(v2))
				*(*Tu64)(unsafe.Pointer(v2)) = *(*Tu64)(unsafe.Pointer(v2)) + 1
				**(**int8)(__ccgo_up((*TJsonString)(unsafe.Pointer(p)).FzBuf + uintptr(v1))) = libc.Int8FromUint8(c)
			} else {
				if (*TJsonString)(unsafe.Pointer(p)).FnUsed+uint64(N)+uint64(7) > (*TJsonString)(unsafe.Pointer(p)).FnAlloc && _jsonStringGrow(tls, p, N+uint32(7)) != 0 {
					return
				}
				_jsonAppendControlChar(tls, p, c)
			}
		}
		z = z + 1
		N = N - 1
	}
	v2 = p + 24
	v1 = *(*Tu64)(unsafe.Pointer(v2))
	*(*Tu64)(unsafe.Pointer(v2)) = *(*Tu64)(unsafe.Pointer(v2)) + 1
	**(**int8)(__ccgo_up((*TJsonString)(unsafe.Pointer(p)).FzBuf + uintptr(v1))) = int8('"')
}

// C documentation
//
//	/* This helper routine for jsonLookupStep() populates pIns with
//	** binary data that is to be inserted into pParse.
//	**
//	** In the common case, pIns just points to pParse->aIns and pParse->nIns.
//	** But if the zPath of the original edit operation includes path elements
//	** that go deeper, additional substructure must be created.
//	**
//	** For example:
//	**
//	**     json_insert('{}', '$.a.b.c', 123);
//	**
//	** The search stops at '$.a'  But additional substructure must be
//	** created for the ".b.c" part of the patch so that the final result
//	** is:  {"a":{"b":{"c"::123}}}.  This routine populates pIns with
//	** the binary equivalent of {"b":{"c":123}} so that it can be inserted.
//	**
//	** The caller is responsible for resetting pIns when it has finished
//	** using the substructure.
//	*/
func _jsonCreateEditSubstructure(tls *libc.TLS, pParse uintptr, pIns uintptr, zTail uintptr) (r Tu32) {
	var rc int32
	var v1 uintptr
	_, _ = rc, v1
	libc.Xmemset(tls, pIns, 0, uint64(72))
	(*TJsonParse)(unsafe.Pointer(pIns)).Fdb = (*TJsonParse)(unsafe.Pointer(pParse)).Fdb
	if int32(**(**int8)(__ccgo_up(zTail))) == 0 {
		/* No substructure.  Just insert what is given in pParse. */
		(*TJsonParse)(unsafe.Pointer(pIns)).FaBlob = (*TJsonParse)(unsafe.Pointer(pParse)).FaIns
		(*TJsonParse)(unsafe.Pointer(pIns)).FnBlob = (*TJsonParse)(unsafe.Pointer(pParse)).FnIns
		rc = 0
	} else {
		/* Construct the binary substructure */
		(*TJsonParse)(unsafe.Pointer(pIns)).FnBlob = uint32(1)
		(*TJsonParse)(unsafe.Pointer(pIns)).FaBlob = uintptr(unsafe.Pointer(&_emptyObject)) + libc.BoolUintptr(int32(**(**int8)(__ccgo_up(zTail))) == int32('.'))
		(*TJsonParse)(unsafe.Pointer(pIns)).FeEdit = (*TJsonParse)(unsafe.Pointer(pParse)).FeEdit
		(*TJsonParse)(unsafe.Pointer(pIns)).FnIns = (*TJsonParse)(unsafe.Pointer(pParse)).FnIns
		(*TJsonParse)(unsafe.Pointer(pIns)).FaIns = (*TJsonParse)(unsafe.Pointer(pParse)).FaIns
		(*TJsonParse)(unsafe.Pointer(pIns)).FiDepth = libc.Uint16FromInt32(libc.Int32FromUint16((*TJsonParse)(unsafe.Pointer(pParse)).FiDepth) + int32(1))
		if libc.Int32FromUint16((*TJsonParse)(unsafe.Pointer(pIns)).FiDepth) >= int32(JSON_MAX_DEPTH) {
			return uint32(JSON_LOOKUP_TOODEEP)
		}
		rc = libc.Int32FromUint32(_jsonLookupStep(tls, pIns, uint32(0), zTail, uint32(0)))
		(*TJsonParse)(unsafe.Pointer(pParse)).FiDepth = (*TJsonParse)(unsafe.Pointer(pParse)).FiDepth - 1
		v1 = pParse + 47
		*(*Tu8)(unsafe.Pointer(v1)) = Tu8(int32(*(*Tu8)(unsafe.Pointer(v1))) | libc.Int32FromUint8((*TJsonParse)(unsafe.Pointer(pIns)).Foom))
	}
	return libc.Uint32FromInt32(rc) /* Error code only */
}

// C documentation
//
//	/*
//	** json_error_position(JSON)
//	**
//	** If the argument is NULL, return NULL
//	**
//	** If the argument is BLOB, do a full validity check and return non-zero
//	** if the check fails.  The return value is the approximate 1-based offset
//	** to the byte of the element that contains the first error.
//	**
//	** Otherwise interpret the argument is TEXT (even if it is numeric) and
//	** return the 1-based character position for where the parser first recognized
//	** that the input was not valid JSON, or return 0 if the input text looks
//	** ok.  JSON-5 extensions are accepted.
//	*/
func _jsonErrorFunc(tls *libc.TLS, ctx uintptr, argc int32, argv uintptr) {
	bp := tls.Alloc(80)
	defer tls.Free(80)
	var iErrPos Ti64
	var k Tu32
	var _ /* s at bp+0 */ TJsonParse
	_, _ = iErrPos, k
	iErrPos = 0
	_ = argc
	libc.Xmemset(tls, bp, 0, uint64(72))
	(**(**TJsonParse)(__ccgo_up(bp))).Fdb = Xsqlite3_context_db_handle(tls, ctx)
	if _jsonArgIsJsonb(tls, **(**uintptr)(__ccgo_up(argv)), bp) != 0 {
		iErrPos = libc.Int64FromUint32(_jsonbValidityCheck(tls, bp, uint32(0), (**(**TJsonParse)(__ccgo_up(bp))).FnBlob, uint32(1)))
	} else {
		(**(**TJsonParse)(__ccgo_up(bp))).FzJson = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(argv)))
		if (**(**TJsonParse)(__ccgo_up(bp))).FzJson == uintptr(0) {
			return
		} /* NULL input or OOM */
		(**(**TJsonParse)(__ccgo_up(bp))).FnJson = Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(argv)))
		if _jsonConvertTextToBlob(tls, bp, uintptr(0)) != 0 {
			if (**(**TJsonParse)(__ccgo_up(bp))).Foom != 0 {
				iErrPos = int64(-int32(1))
			} else {
				/* Because s.oom is false */
				k = uint32(0)
				for {
					if !(k < (**(**TJsonParse)(__ccgo_up(bp))).FiErr && **(**int8)(__ccgo_up((**(**TJsonParse)(__ccgo_up(bp))).FzJson + uintptr(k))) != 0) {
						break
					}
					if int32(**(**int8)(__ccgo_up((**(**TJsonParse)(__ccgo_up(bp))).FzJson + uintptr(k))))&int32(0xc0) != int32(0x80) {
						iErrPos = iErrPos + 1
					}
					goto _1
				_1:
					;
					k = k + 1
				}
				iErrPos = iErrPos + 1
			}
		}
	}
	_jsonParseReset(tls, bp)
	if iErrPos < 0 {
		Xsqlite3_result_error_nomem(tls, ctx)
	} else {
		Xsqlite3_result_int64(tls, ctx, iErrPos)
	}
}

// C documentation
//
//	/*
//	** Open an mem file handle.
//	*/
func _memdbOpen(tls *libc.TLS, pVfs uintptr, zName uintptr, pFd uintptr, flags int32, pOutFlags uintptr) (r int32) {
	var apNew, p, pFile, pVfsMutex, v3 uintptr
	var i, szName, v2 int32
	_, _, _, _, _, _, _, _ = apNew, i, p, pFile, pVfsMutex, szName, v2, v3
	pFile = pFd
	p = uintptr(0)
	_ = pVfs
	libc.Xmemset(tls, pFile, 0, uint64(24))
	szName = _sqlite3Strlen30(tls, zName)
	if szName > int32(1) && (int32(**(**int8)(__ccgo_up(zName))) == int32('/') || int32(**(**int8)(__ccgo_up(zName))) == int32('\\')) {
		pVfsMutex = _sqlite3MutexAlloc(tls, int32(SQLITE_MUTEX_STATIC_VFS1))
		Xsqlite3_mutex_enter(tls, pVfsMutex)
		i = 0
		for {
			if !(i < _memdb_g.FnMemStore) {
				break
			}
			if libc.Xstrcmp(tls, (*TMemStore)(unsafe.Pointer(**(**uintptr)(__ccgo_up(_memdb_g.FapMemStore + uintptr(i)*8)))).FzFName, zName) == 0 {
				p = **(**uintptr)(__ccgo_up(_memdb_g.FapMemStore + uintptr(i)*8))
				break
			}
			goto _1
		_1:
			;
			i = i + 1
		}
		if p == uintptr(0) {
			p = _sqlite3Malloc(tls, uint64(72)+libc.Uint64FromInt64(int64(szName))+uint64(3))
			if p == uintptr(0) {
				Xsqlite3_mutex_leave(tls, pVfsMutex)
				return int32(SQLITE_NOMEM)
			}
			apNew = _sqlite3Realloc(tls, _memdb_g.FapMemStore, uint64(8)*libc.Uint64FromInt64(libc.Int64FromInt32(1)+int64(_memdb_g.FnMemStore)))
			if apNew == uintptr(0) {
				Xsqlite3_free(tls, p)
				Xsqlite3_mutex_leave(tls, pVfsMutex)
				return int32(SQLITE_NOMEM)
			}
			v3 = uintptr(unsafe.Pointer(&_memdb_g))
			v2 = *(*int32)(unsafe.Pointer(v3))
			*(*int32)(unsafe.Pointer(v3)) = *(*int32)(unsafe.Pointer(v3)) + 1
			**(**uintptr)(__ccgo_up(apNew + uintptr(v2)*8)) = p
			_memdb_g.FapMemStore = apNew
			libc.Xmemset(tls, p, 0, uint64(72))
			(*TMemStore)(unsafe.Pointer(p)).FmFlags = libc.Uint32FromInt32(libc.Int32FromInt32(SQLITE_DESERIALIZE_RESIZEABLE) | libc.Int32FromInt32(SQLITE_DESERIALIZE_FREEONCLOSE))
			(*TMemStore)(unsafe.Pointer(p)).FszMax = _sqlite3Config.FmxMemdbSize
			(*TMemStore)(unsafe.Pointer(p)).FzFName = p + 1*72
			libc.Xmemcpy(tls, (*TMemStore)(unsafe.Pointer(p)).FzFName, zName, libc.Uint64FromInt32(szName+int32(1)))
			(*TMemStore)(unsafe.Pointer(p)).FpMutex = Xsqlite3_mutex_alloc(tls, SQLITE_MUTEX_FAST)
			if (*TMemStore)(unsafe.Pointer(p)).FpMutex == uintptr(0) {
				_memdb_g.FnMemStore = _memdb_g.FnMemStore - 1
				Xsqlite3_free(tls, p)
				Xsqlite3_mutex_leave(tls, pVfsMutex)
				return int32(SQLITE_NOMEM)
			}
			(*TMemStore)(unsafe.Pointer(p)).FnRef = int32(1)
			_memdbEnter(tls, p)
		} else {
			_memdbEnter(tls, p)
			(*TMemStore)(unsafe.Pointer(p)).FnRef = (*TMemStore)(unsafe.Pointer(p)).FnRef + 1
		}
		Xsqlite3_mutex_leave(tls, pVfsMutex)
	} else {
		p = _sqlite3Malloc(tls, uint64(72))
		if p == uintptr(0) {
			return int32(SQLITE_NOMEM)
		}
		libc.Xmemset(tls, p, 0, uint64(72))
		(*TMemStore)(unsafe.Pointer(p)).FmFlags = libc.Uint32FromInt32(libc.Int32FromInt32(SQLITE_DESERIALIZE_RESIZEABLE) | libc.Int32FromInt32(SQLITE_DESERIALIZE_FREEONCLOSE))
		(*TMemStore)(unsafe.Pointer(p)).FszMax = _sqlite3Config.FmxMemdbSize
	}
	(*TMemFile)(unsafe.Pointer(pFile)).FpStore = p
	if pOutFlags != uintptr(0) {
		**(**int32)(__ccgo_up(pOutFlags)) = flags | int32(SQLITE_OPEN_MEMORY)
	}
	(*Tsqlite3_file)(unsafe.Pointer(pFd)).FpMethods = uintptr(unsafe.Pointer(&_memdb_io_methods))
	_memdbLeave(tls, p)
	return SQLITE_OK
}

// C documentation
//
//	/*
//	** Apply a delta.
//	**
//	** The output buffer should be big enough to hold the whole output
//	** file and a NUL terminator at the end.  The delta_output_size()
//	** routine will determine this size for you.
//	**
//	** The delta string should be null-terminated.  But the delta string
//	** may contain embedded NUL characters (if the input and output are
//	** binary files) so we also have to pass in the length of the delta in
//	** the lenDelta parameter.
//	**
//	** This function returns the size of the output file in bytes (excluding
//	** the final NUL terminator character).  Except, if the delta string is
//	** malformed or intended for use with a source file other than zSrc,
//	** then this routine returns -1.
//	**
//	** Refer to the delta_create() documentation above for a description
//	** of the delta file format.
//	*/
func _rbuDeltaApply(tls *libc.TLS, zSrc uintptr, lenSrc int32, _zDelta uintptr, _lenDelta int32, zOut uintptr) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	*(*uintptr)(unsafe.Pointer(bp)) = _zDelta
	*(*int32)(unsafe.Pointer(bp + 8)) = _lenDelta
	var cnt, limit, ofst, total uint32
	_, _, _, _ = cnt, limit, ofst, total
	total = uint32(0)
	limit = _rbuDeltaGetInt(tls, bp, bp+8)
	if **(**int32)(__ccgo_up(bp + 8)) <= 0 || int32(**(**int8)(__ccgo_up(**(**uintptr)(__ccgo_up(bp))))) != int32('\n') {
		/* ERROR: size integer not terminated by "\n" */
		return -int32(1)
	}
	**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + 1
	**(**int32)(__ccgo_up(bp + 8)) = **(**int32)(__ccgo_up(bp + 8)) - 1
	for **(**int8)(__ccgo_up(**(**uintptr)(__ccgo_up(bp)))) != 0 && **(**int32)(__ccgo_up(bp + 8)) > 0 {
		cnt = _rbuDeltaGetInt(tls, bp, bp+8)
		if **(**int32)(__ccgo_up(bp + 8)) <= 0 {
			return -int32(1)
		}
		switch int32(**(**int8)(__ccgo_up(**(**uintptr)(__ccgo_up(bp))))) {
		case int32('@'):
			**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + 1
			**(**int32)(__ccgo_up(bp + 8)) = **(**int32)(__ccgo_up(bp + 8)) - 1
			ofst = _rbuDeltaGetInt(tls, bp, bp+8)
			if **(**int32)(__ccgo_up(bp + 8)) > 0 || int32(**(**int8)(__ccgo_up(**(**uintptr)(__ccgo_up(bp))))) != int32(',') {
				/* ERROR: copy command not terminated by ',' */
				return -int32(1)
			}
			**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + 1
			**(**int32)(__ccgo_up(bp + 8)) = **(**int32)(__ccgo_up(bp + 8)) - 1
			total = total + cnt
			if total > limit {
				/* ERROR: copy exceeds output file size */
				return -int32(1)
			}
			if uint64(ofst)+uint64(cnt) > libc.Uint64FromInt32(lenSrc) {
				/* ERROR: copy extends past end of input */
				return -int32(1)
			}
			libc.Xmemcpy(tls, zOut, zSrc+uintptr(ofst), uint64(cnt))
			zOut = zOut + uintptr(cnt)
		case int32(':'):
			**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + 1
			**(**int32)(__ccgo_up(bp + 8)) = **(**int32)(__ccgo_up(bp + 8)) - 1
			total = total + cnt
			if total > limit {
				/* ERROR:  insert command gives an output larger than predicted */
				return -int32(1)
			}
			if libc.Int64FromUint32(cnt) > int64(**(**int32)(__ccgo_up(bp + 8))) {
				/* ERROR: insert count exceeds size of delta */
				return -int32(1)
			}
			libc.Xmemcpy(tls, zOut, **(**uintptr)(__ccgo_up(bp)), uint64(cnt))
			zOut = zOut + uintptr(cnt)
			**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + uintptr(cnt)
			**(**int32)(__ccgo_up(bp + 8)) = libc.Int32FromUint32(uint32(**(**int32)(__ccgo_up(bp + 8))) - cnt)
		case int32(';'):
			**(**uintptr)(__ccgo_up(bp)) = **(**uintptr)(__ccgo_up(bp)) + 1
			**(**int32)(__ccgo_up(bp + 8)) = **(**int32)(__ccgo_up(bp + 8)) - 1
			**(**int8)(__ccgo_up(zOut)) = 0
			if total != limit {
				/* ERROR: generated size does not match predicted size */
				return -int32(1)
			}
			return libc.Int32FromUint32(total)
		default:
			/* ERROR: unknown delta operator */
			return -int32(1)
		}
	}
	/* ERROR: unterminated delta */
	return -int32(1)
}

// C documentation
//
//	/*
//	** Rtree virtual table module xBestIndex method. There are three
//	** table scan strategies to choose from (in order from most to
//	** least desirable):
//	**
//	**   idxNum     idxStr        Strategy
//	**   ------------------------------------------------
//	**     1        Unused        Direct lookup by rowid.
//	**     2        See below     R-tree query or full-table scan.
//	**   ------------------------------------------------
//	**
//	** If strategy 1 is used, then idxStr is not meaningful. If strategy
//	** 2 is used, idxStr is formatted to contain 2 bytes for each
//	** constraint used. The first two bytes of idxStr correspond to
//	** the constraint in sqlite3_index_info.aConstraintUsage[] with
//	** (argvIndex==1) etc.
//	**
//	** The first of each pair of bytes in idxStr identifies the constraint
//	** operator as follows:
//	**
//	**   Operator    Byte Value
//	**   ----------------------
//	**      =        0x41 ('A')
//	**     <=        0x42 ('B')
//	**      <        0x43 ('C')
//	**     >=        0x44 ('D')
//	**      >        0x45 ('E')
//	**   MATCH       0x46 ('F')
//	**   ----------------------
//	**
//	** The second of each pair of bytes identifies the coordinate column
//	** to which the constraint applies. The leftmost coordinate column
//	** is 'a', the second from the left 'b' etc.
//	*/
func _rtreeBestIndex(tls *libc.TLS, tab uintptr, pIdxInfo uintptr) (r int32) {
	bp := tls.Alloc(48)
	defer tls.Free(48)
	var bMatch, iIdx, ii, jj, rc, v4 int32
	var doOmit, op Tu8
	var nRow Ti64
	var p, pRtree uintptr
	var _ /* zIdxStr at bp+0 */ [41]int8
	_, _, _, _, _, _, _, _, _, _, _ = bMatch, doOmit, iIdx, ii, jj, nRow, op, p, pRtree, rc, v4
	pRtree = tab
	rc = SQLITE_OK
	bMatch = 0 /* Estimated rows returned by this scan */
	iIdx = 0
	libc.Xmemset(tls, bp, 0, uint64(41))
	/* Check if there exists a MATCH constraint - even an unusable one. If there
	 ** is, do not consider the lookup-by-rowid plan as using such a plan would
	 ** require the VDBE to evaluate the MATCH constraint, which is not currently
	 ** possible. */
	ii = 0
	for {
		if !(ii < (*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FnConstraint) {
			break
		}
		if libc.Int32FromUint8((**(**Tsqlite3_index_constraint)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraint + uintptr(ii)*12))).Fop) == int32(SQLITE_INDEX_CONSTRAINT_MATCH) {
			bMatch = int32(1)
		}
		goto _1
	_1:
		;
		ii = ii + 1
	}
	ii = 0
	for {
		if !(ii < (*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FnConstraint && iIdx < libc.Int32FromUint64(libc.Uint64FromInt64(41)-libc.Uint64FromInt32(1))) {
			break
		}
		p = (*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraint + uintptr(ii)*12
		if bMatch == 0 && (*Tsqlite3_index_constraint)(unsafe.Pointer(p)).Fusable != 0 && (*Tsqlite3_index_constraint)(unsafe.Pointer(p)).FiColumn <= 0 && libc.Int32FromUint8((*Tsqlite3_index_constraint)(unsafe.Pointer(p)).Fop) == int32(SQLITE_INDEX_CONSTRAINT_EQ) {
			jj = 0
			for {
				if !(jj < ii) {
					break
				}
				(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(jj)*8))).FargvIndex = 0
				(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(jj)*8))).Fomit = uint8(0)
				goto _3
			_3:
				;
				jj = jj + 1
			}
			(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxNum = int32(1)
			(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(ii)*8))).FargvIndex = int32(1)
			(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(jj)*8))).Fomit = uint8(1)
			/* This strategy involves a two rowid lookups on an B-Tree structures
			 ** and then a linear search of an R-Tree node. This should be
			 ** considered almost as quick as a direct rowid lookup (for which
			 ** sqlite uses an internal cost of 0.0). It is expected to return
			 ** a single row.
			 */
			(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FestimatedCost = float64(30)
			(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FestimatedRows = int64(1)
			(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxFlags = int32(SQLITE_INDEX_SCAN_UNIQUE)
			return SQLITE_OK
		}
		if (*Tsqlite3_index_constraint)(unsafe.Pointer(p)).Fusable != 0 && ((*Tsqlite3_index_constraint)(unsafe.Pointer(p)).FiColumn > 0 && (*Tsqlite3_index_constraint)(unsafe.Pointer(p)).FiColumn <= libc.Int32FromUint8((*TRtree)(unsafe.Pointer(pRtree)).FnDim2) || libc.Int32FromUint8((*Tsqlite3_index_constraint)(unsafe.Pointer(p)).Fop) == int32(SQLITE_INDEX_CONSTRAINT_MATCH)) {
			doOmit = uint8(1)
			switch libc.Int32FromUint8((*Tsqlite3_index_constraint)(unsafe.Pointer(p)).Fop) {
			case int32(SQLITE_INDEX_CONSTRAINT_EQ):
				op = uint8(RTREE_EQ)
				doOmit = uint8(0)
			case int32(SQLITE_INDEX_CONSTRAINT_GT):
				op = uint8(RTREE_GT)
				doOmit = uint8(0)
			case int32(SQLITE_INDEX_CONSTRAINT_LE):
				op = uint8(RTREE_LE)
			case int32(SQLITE_INDEX_CONSTRAINT_LT):
				op = uint8(RTREE_LT)
				doOmit = uint8(0)
			case int32(SQLITE_INDEX_CONSTRAINT_GE):
				op = uint8(RTREE_GE)
			case int32(SQLITE_INDEX_CONSTRAINT_MATCH):
				op = uint8(RTREE_MATCH)
			default:
				op = uint8(0)
				break
			}
			if op != 0 {
				v4 = iIdx
				iIdx = iIdx + 1
				(**(**[41]int8)(__ccgo_up(bp)))[v4] = libc.Int8FromUint8(op)
				v4 = iIdx
				iIdx = iIdx + 1
				(**(**[41]int8)(__ccgo_up(bp)))[v4] = int8((*Tsqlite3_index_constraint)(unsafe.Pointer(p)).FiColumn - libc.Int32FromInt32(1) + libc.Int32FromUint8('0'))
				(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(ii)*8))).FargvIndex = iIdx / int32(2)
				(**(**Tsqlite3_index_constraint_usage)(__ccgo_up((*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FaConstraintUsage + uintptr(ii)*8))).Fomit = doOmit
			}
		}
		goto _2
	_2:
		;
		ii = ii + 1
	}
	(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxNum = int32(2)
	(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FneedToFreeIdxStr = int32(1)
	if iIdx > 0 {
		(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxStr = Xsqlite3_malloc(tls, iIdx+int32(1))
		if (*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxStr == uintptr(0) {
			return int32(SQLITE_NOMEM)
		}
		libc.Xmemcpy(tls, (*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FidxStr, bp, libc.Uint64FromInt32(iIdx+int32(1)))
	}
	nRow = (*TRtree)(unsafe.Pointer(pRtree)).FnRowEst >> (iIdx / int32(2))
	(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FestimatedCost = float64(libc.Float64FromFloat64(6) * float64(nRow))
	(*Tsqlite3_index_info)(unsafe.Pointer(pIdxInfo)).FestimatedRows = nRow
	return rc
}

// C documentation
//
//	/*
//	** Rtree virtual table module xFilter method.
//	*/
func _rtreeFilter(tls *libc.TLS, pVtabCursor uintptr, idxNum int32, idxStr uintptr, argc int32, argv uintptr) (r int32) {
	bp := tls.Alloc(32)
	defer tls.Free(32)
	var eType, eType1, ii, rc int32
	var iRowid Ti64
	var iVal Tsqlite3_int64
	var p, p1, pCsr, pNew, pRtree uintptr
	var _ /* iCell at bp+8 */ int32
	var _ /* iNode at bp+24 */ Ti64
	var _ /* pLeaf at bp+16 */ uintptr
	var _ /* pRoot at bp+0 */ uintptr
	_, _, _, _, _, _, _, _, _, _, _ = eType, eType1, iRowid, iVal, ii, p, p1, pCsr, pNew, pRtree, rc
	pRtree = (*Tsqlite3_vtab_cursor)(unsafe.Pointer(pVtabCursor)).FpVtab
	pCsr = pVtabCursor
	**(**uintptr)(__ccgo_up(bp)) = uintptr(0)
	rc = SQLITE_OK
	**(**int32)(__ccgo_up(bp + 8)) = 0
	_rtreeReference(tls, pRtree)
	/* Reset the cursor to the same state as rtreeOpen() leaves it in. */
	_resetCursor(tls, pCsr)
	(*TRtreeCursor)(unsafe.Pointer(pCsr)).FiStrategy = idxNum
	if idxNum == int32(1) { /* Search point for the leaf */
		iRowid = Xsqlite3_value_int64(tls, **(**uintptr)(__ccgo_up(argv)))
		**(**Ti64)(__ccgo_up(bp + 24)) = 0
		eType = Xsqlite3_value_numeric_type(tls, **(**uintptr)(__ccgo_up(argv)))
		if eType == int32(SQLITE_INTEGER) || eType == int32(SQLITE_FLOAT) && 0 == _sqlite3IntFloatCompare(tls, iRowid, Xsqlite3_value_double(tls, **(**uintptr)(__ccgo_up(argv)))) {
			rc = _findLeafNode(tls, pRtree, iRowid, bp+16, bp+24)
		} else {
			rc = SQLITE_OK
			**(**uintptr)(__ccgo_up(bp + 16)) = uintptr(0)
		}
		if rc == SQLITE_OK && **(**uintptr)(__ccgo_up(bp + 16)) != uintptr(0) {
			p = _rtreeSearchPointNew(tls, pCsr, float64(0), uint8(0))
			/* Always returns pCsr->sPoint */
			**(**uintptr)(__ccgo_up(pCsr + 88)) = **(**uintptr)(__ccgo_up(bp + 16))
			(*TRtreeSearchPoint)(unsafe.Pointer(p)).Fid = **(**Ti64)(__ccgo_up(bp + 24))
			(*TRtreeSearchPoint)(unsafe.Pointer(p)).FeWithin = uint8(PARTLY_WITHIN)
			rc = _nodeRowidIndex(tls, pRtree, **(**uintptr)(__ccgo_up(bp + 16)), iRowid, bp+8)
			(*TRtreeSearchPoint)(unsafe.Pointer(p)).FiCell = libc.Uint8FromInt32(**(**int32)(__ccgo_up(bp + 8)))
		} else {
			(*TRtreeCursor)(unsafe.Pointer(pCsr)).FatEOF = uint8(1)
		}
	} else {
		/* Normal case - r-tree scan. Set up the RtreeCursor.aConstraint array
		 ** with the configured constraints.
		 */
		rc = _nodeAcquire(tls, pRtree, int64(1), uintptr(0), bp)
		if rc == SQLITE_OK && argc > 0 {
			(*TRtreeCursor)(unsafe.Pointer(pCsr)).FaConstraint = Xsqlite3_malloc64(tls, uint64(uint64(24)*libc.Uint64FromInt32(argc)))
			(*TRtreeCursor)(unsafe.Pointer(pCsr)).FnConstraint = argc
			if !((*TRtreeCursor)(unsafe.Pointer(pCsr)).FaConstraint != 0) {
				rc = int32(SQLITE_NOMEM)
			} else {
				libc.Xmemset(tls, (*TRtreeCursor)(unsafe.Pointer(pCsr)).FaConstraint, 0, uint64(24)*libc.Uint64FromInt32(argc))
				libc.Xmemset(tls, pCsr+128, 0, uint64(4)*libc.Uint64FromInt32((*TRtree)(unsafe.Pointer(pRtree)).FiDepth+libc.Int32FromInt32(1)))
				ii = 0
				for {
					if !(ii < argc) {
						break
					}
					p1 = (*TRtreeCursor)(unsafe.Pointer(pCsr)).FaConstraint + uintptr(ii)*24
					eType1 = Xsqlite3_value_numeric_type(tls, **(**uintptr)(__ccgo_up(argv + uintptr(ii)*8)))
					(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(**(**int8)(__ccgo_up(idxStr + uintptr(ii*int32(2)))))
					(*TRtreeConstraint)(unsafe.Pointer(p1)).FiCoord = int32(**(**int8)(__ccgo_up(idxStr + uintptr(ii*int32(2)+int32(1))))) - int32('0')
					if (*TRtreeConstraint)(unsafe.Pointer(p1)).Fop >= int32(RTREE_MATCH) {
						/* A MATCH operator. The right-hand-side must be a blob that
						 ** can be cast into an RtreeMatchArg object. One created using
						 ** an sqlite3_rtree_geometry_callback() SQL user function.
						 */
						rc = _deserializeGeometry(tls, **(**uintptr)(__ccgo_up(argv + uintptr(ii)*8)), p1)
						if rc != SQLITE_OK {
							break
						}
						(*Tsqlite3_rtree_query_info)(unsafe.Pointer((*TRtreeConstraint)(unsafe.Pointer(p1)).FpInfo)).FnCoord = libc.Int32FromUint8((*TRtree)(unsafe.Pointer(pRtree)).FnDim2)
						(*Tsqlite3_rtree_query_info)(unsafe.Pointer((*TRtreeConstraint)(unsafe.Pointer(p1)).FpInfo)).FanQueue = pCsr + 128
						(*Tsqlite3_rtree_query_info)(unsafe.Pointer((*TRtreeConstraint)(unsafe.Pointer(p1)).FpInfo)).FmxLevel = (*TRtree)(unsafe.Pointer(pRtree)).FiDepth + int32(1)
					} else {
						if eType1 == int32(SQLITE_INTEGER) {
							iVal = Xsqlite3_value_int64(tls, **(**uintptr)(__ccgo_up(argv + uintptr(ii)*8)))
							*(*TRtreeDValue)(unsafe.Pointer(p1 + 8)) = float64(iVal)
							if iVal >= libc.Int64FromInt32(1)<<libc.Int32FromInt32(48) || iVal <= -(libc.Int64FromInt32(1)<<libc.Int32FromInt32(48)) {
								if (*TRtreeConstraint)(unsafe.Pointer(p1)).Fop == int32(RTREE_LT) {
									(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(RTREE_LE)
								}
								if (*TRtreeConstraint)(unsafe.Pointer(p1)).Fop == int32(RTREE_GT) {
									(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(RTREE_GE)
								}
							}
						} else {
							if eType1 == int32(SQLITE_FLOAT) {
								*(*TRtreeDValue)(unsafe.Pointer(p1 + 8)) = Xsqlite3_value_double(tls, **(**uintptr)(__ccgo_up(argv + uintptr(ii)*8)))
							} else {
								*(*TRtreeDValue)(unsafe.Pointer(p1 + 8)) = float64(0)
								if eType1 == int32(SQLITE_NULL) {
									(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(RTREE_FALSE)
								} else {
									if (*TRtreeConstraint)(unsafe.Pointer(p1)).Fop == int32(RTREE_LT) || (*TRtreeConstraint)(unsafe.Pointer(p1)).Fop == int32(RTREE_LE) {
										(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(RTREE_TRUE)
									} else {
										(*TRtreeConstraint)(unsafe.Pointer(p1)).Fop = int32(RTREE_FALSE)
									}
								}
							}
						}
					}
					goto _1
				_1:
					;
					ii = ii + 1
				}
			}
		}
		if rc == SQLITE_OK {
			/* Due to the resetCursor() call above */
			pNew = _rtreeSearchPointNew(tls, pCsr, float64(0), libc.Uint8FromInt32((*TRtree)(unsafe.Pointer(pRtree)).FiDepth+libc.Int32FromInt32(1)))
			if pNew == uintptr(0) { /* Because pCsr->bPoint was FALSE */
				return int32(SQLITE_NOMEM)
			}
			(*TRtreeSearchPoint)(unsafe.Pointer(pNew)).Fid = int64(1)
			(*TRtreeSearchPoint)(unsafe.Pointer(pNew)).FiCell = uint8(0)
			(*TRtreeSearchPoint)(unsafe.Pointer(pNew)).FeWithin = uint8(PARTLY_WITHIN)
			**(**uintptr)(__ccgo_up(pCsr + 88)) = **(**uintptr)(__ccgo_up(bp))
			**(**uintptr)(__ccgo_up(bp)) = uintptr(0)
			rc = _rtreeStepToLeaf(tls, pCsr)
		}
	}
	_nodeRelease(tls, pRtree, **(**uintptr)(__ccgo_up(bp)))
	_rtreeRelease(tls, pRtree)
	return rc
}

// C documentation
//
//	/*
//	** This routine is the core allocator for Expr nodes.
//	**
//	** Construct a new expression node and return a pointer to it.  Memory
//	** for this node and for the pToken argument is a single allocation
//	** obtained from sqlite3DbMalloc().  The calling function
//	** is responsible for making sure the node eventually gets freed.
//	**
//	** If dequote is true, then the token (if it exists) is dequoted.
//	** If dequote is false, no dequoting is performed.  The deQuote
//	** parameter is ignored if pToken is NULL or if the token does not
//	** appear to be quoted.  If the quotes were of the form "..." (double-quotes)
//	** then the EP_DblQuoted flag is set on the expression node.
//	**
//	** Special case (tag-20240227-a):  If op==TK_INTEGER and pToken points to
//	** a string that can be translated into a 32-bit integer, then the token is
//	** not stored in u.zToken.  Instead, the integer values is written
//	** into u.iValue and the EP_IntValue flag is set. No extra storage
//	** is allocated to hold the integer text and the dequote flag is ignored.
//	** See also tag-20240227-b.
//	*/
func _sqlite3ExprAlloc(tls *libc.TLS, db uintptr, op int32, pToken uintptr, dequote int32) (r uintptr) {
	var nExtra int32
	var pNew uintptr
	var v1 uint32
	_, _, _ = nExtra, pNew, v1
	if pToken != 0 {
		v1 = (*TToken)(unsafe.Pointer(pToken)).Fn + uint32(1)
	} else {
		v1 = uint32(0)
	}
	nExtra = libc.Int32FromUint32(v1)
	pNew = _sqlite3DbMallocRawNN(tls, db, uint64(uint64(72)+libc.Uint64FromInt32(nExtra)))
	if pNew != 0 {
		libc.Xmemset(tls, pNew, 0, uint64(72))
		(*TExpr)(unsafe.Pointer(pNew)).Fop = libc.Uint8FromInt32(op)
		(*TExpr)(unsafe.Pointer(pNew)).FiAgg = int16(-int32(1))
		if nExtra != 0 {
			*(*uintptr)(unsafe.Pointer(pNew + 8)) = pNew + 1*72
			if (*TToken)(unsafe.Pointer(pToken)).Fn != 0 {
				libc.Xmemcpy(tls, *(*uintptr)(unsafe.Pointer(pNew + 8)), (*TToken)(unsafe.Pointer(pToken)).Fz, uint64((*TToken)(unsafe.Pointer(pToken)).Fn))
			}
			**(**int8)(__ccgo_up(*(*uintptr)(unsafe.Pointer(pNew + 8)) + uintptr((*TToken)(unsafe.Pointer(pToken)).Fn))) = 0
			if dequote != 0 && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(*(*uintptr)(unsafe.Pointer(pNew + 8)))))])&int32(0x80) != 0 {
				_sqlite3DequoteExpr(tls, pNew)
			}
		}
		(*TExpr)(unsafe.Pointer(pNew)).FnHeight = int32(1)
	}
	return pNew
}

// C documentation
//
//	/*
//	** Locate a user function given a name, a number of arguments and a flag
//	** indicating whether the function prefers UTF-16 over UTF-8.  Return a
//	** pointer to the FuncDef structure that defines that function, or return
//	** NULL if the function does not exist.
//	**
//	** If the createFlag argument is true, then a new (blank) FuncDef
//	** structure is created and liked into the "db" structure if a
//	** no matching function previously existed.
//	**
//	** If nArg is -2, then the first valid function found is returned.  A
//	** function is valid if xSFunc is non-zero.  The nArg==(-2)
//	** case is used to see if zName is a valid function name for some number
//	** of arguments.  If nArg is -2, then createFlag must be 0.
//	**
//	** If createFlag is false, then a function with the required name and
//	** number of arguments may be returned even if the eTextRep flag does not
//	** match that requested.
//	*/
func _sqlite3FindFunction(tls *libc.TLS, db uintptr, zName uintptr, nArg int32, enc Tu8, createFlag Tu8) (r uintptr) {
	var bestScore, h, nName, score, score1 int32
	var p, pBest, pOther, z, v1 uintptr
	var v2 bool
	_, _, _, _, _, _, _, _, _, _, _ = bestScore, h, nName, p, pBest, pOther, score, score1, z, v1, v2 /* Iterator variable */
	pBest = uintptr(0)                                                                                /* Best match found so far */
	bestScore = 0                                                                                     /* Length of the name */
	nName = _sqlite3Strlen30(tls, zName)
	/* First search for a match amongst the application-defined functions.
	 */
	p = _sqlite3HashFind(tls, db+624, zName)
	for p != 0 {
		score = _matchQuality(tls, p, nArg, enc)
		if score > bestScore {
			pBest = p
			bestScore = score
		}
		p = (*TFuncDef)(unsafe.Pointer(p)).FpNext
	}
	/* If no match is found, search the built-in functions.
	 **
	 ** If the DBFLAG_PreferBuiltin flag is set, then search the built-in
	 ** functions even if a prior app-defined function was found.  And give
	 ** priority to built-in functions.
	 **
	 ** Except, if createFlag is true, that means that we are trying to
	 ** install a new function.  Whatever FuncDef structure is returned it will
	 ** have fields overwritten with new information appropriate for the
	 ** new function.  But the FuncDefs for built-in functions are read-only.
	 ** So we must not search for built-ins when creating a new function.
	 */
	if !(createFlag != 0) && (pBest == uintptr(0) || (*Tsqlite3)(unsafe.Pointer(db)).FmDbFlags&uint32(DBFLAG_PreferBuiltin) != uint32(0)) {
		bestScore = 0
		h = (libc.Int32FromUint8(_sqlite3UpperToLower[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zName)))]) + nName) % int32(SQLITE_FUNC_HASH_SZ)
		p = _sqlite3FunctionSearch(tls, h, zName)
		for p != 0 {
			score1 = _matchQuality(tls, p, nArg, enc)
			if score1 > bestScore {
				pBest = p
				bestScore = score1
			}
			p = (*TFuncDef)(unsafe.Pointer(p)).FpNext
		}
	}
	/* If the createFlag parameter is true and the search did not reveal an
	 ** exact match for the name, number of arguments and encoding, then add a
	 ** new entry to the hash table and return it.
	 */
	if v2 = createFlag != 0 && bestScore < int32(FUNC_PERFECT_MATCH); v2 {
		v1 = _sqlite3DbMallocZero(tls, db, uint64(uint64(72)+libc.Uint64FromInt32(nName)+uint64(1)))
		pBest = v1
	}
	if v2 && v1 != uintptr(0) {
		(*TFuncDef)(unsafe.Pointer(pBest)).FzName = pBest + 1*72
		(*TFuncDef)(unsafe.Pointer(pBest)).FnArg = libc.Int16FromUint16(libc.Uint16FromInt32(nArg))
		(*TFuncDef)(unsafe.Pointer(pBest)).FfuncFlags = uint32(enc)
		libc.Xmemcpy(tls, pBest+1*72, zName, libc.Uint64FromInt32(nName+int32(1)))
		z = (*TFuncDef)(unsafe.Pointer(pBest)).FzName
		for {
			if !(**(**Tu8)(__ccgo_up(z)) != 0) {
				break
			}
			**(**Tu8)(__ccgo_up(z)) = _sqlite3UpperToLower[**(**Tu8)(__ccgo_up(z))]
			goto _3
		_3:
			;
			z = z + 1
		}
		pOther = _sqlite3HashInsert(tls, db+624, (*TFuncDef)(unsafe.Pointer(pBest)).FzName, pBest)
		if pOther == pBest {
			_sqlite3DbFree(tls, db, pBest)
			_sqlite3OomFault(tls, db)
			return uintptr(0)
		} else {
			(*TFuncDef)(unsafe.Pointer(pBest)).FpNext = pOther
		}
	}
	if pBest != 0 && ((*TFuncDef)(unsafe.Pointer(pBest)).FxSFunc != 0 || createFlag != 0) {
		return pBest
	}
	return uintptr(0)
}

// C documentation
//
//	/*
//	** Parameter zIn contains a rank() function specification. The format of
//	** this is:
//	**
//	**   + Bareword (function name)
//	**   + Open parenthesis - "("
//	**   + Zero or more SQL literals in a comma separated list
//	**   + Close parenthesis - ")"
//	*/
func _sqlite3Fts5ConfigParseRank(tls *libc.TLS, zIn uintptr, pzRank uintptr, pzRankArgs uintptr) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var p, pArgs, pRank, zRank, zRankArgs uintptr
	var _ /* rc at bp+0 */ int32
	_, _, _, _, _ = p, pArgs, pRank, zRank, zRankArgs
	p = zIn
	zRank = uintptr(0)
	zRankArgs = uintptr(0)
	**(**int32)(__ccgo_up(bp)) = SQLITE_OK
	**(**uintptr)(__ccgo_up(pzRank)) = uintptr(0)
	**(**uintptr)(__ccgo_up(pzRankArgs)) = uintptr(0)
	if p == uintptr(0) {
		**(**int32)(__ccgo_up(bp)) = int32(SQLITE_ERROR)
	} else {
		p = _fts5ConfigSkipWhitespace(tls, p)
		pRank = p
		p = _fts5ConfigSkipBareword(tls, p)
		if p != 0 {
			zRank = _sqlite3Fts5MallocZero(tls, bp, int64(uintptr(1)+p)-int64(pRank))
			if zRank != 0 {
				libc.Xmemcpy(tls, zRank, pRank, libc.Uint64FromInt64(int64(p)-int64(pRank)))
			}
		} else {
			**(**int32)(__ccgo_up(bp)) = int32(SQLITE_ERROR)
		}
		if **(**int32)(__ccgo_up(bp)) == SQLITE_OK {
			p = _fts5ConfigSkipWhitespace(tls, p)
			if int32(**(**int8)(__ccgo_up(p))) != int32('(') {
				**(**int32)(__ccgo_up(bp)) = int32(SQLITE_ERROR)
			}
			p = p + 1
		}
		if **(**int32)(__ccgo_up(bp)) == SQLITE_OK {
			p = _fts5ConfigSkipWhitespace(tls, p)
			pArgs = p
			if int32(**(**int8)(__ccgo_up(p))) != int32(')') {
				p = _fts5ConfigSkipArgs(tls, p)
				if p == uintptr(0) {
					**(**int32)(__ccgo_up(bp)) = int32(SQLITE_ERROR)
				} else {
					zRankArgs = _sqlite3Fts5MallocZero(tls, bp, int64(uintptr(1)+p)-int64(pArgs))
					if zRankArgs != 0 {
						libc.Xmemcpy(tls, zRankArgs, pArgs, libc.Uint64FromInt64(int64(p)-int64(pArgs)))
					}
				}
			}
		}
	}
	if **(**int32)(__ccgo_up(bp)) != SQLITE_OK {
		Xsqlite3_free(tls, zRank)
	} else {
		**(**uintptr)(__ccgo_up(pzRank)) = zRank
		**(**uintptr)(__ccgo_up(pzRankArgs)) = zRankArgs
	}
	return **(**int32)(__ccgo_up(bp))
}

// C documentation
//
//	/*
//	** Add an entry to the in-memory hash table. The key is the concatenation
//	** of bByte and (pToken/nToken). The value is (iRowid/iCol/iPos).
//	**
//	**     (bByte || pToken) -> (iRowid,iCol,iPos)
//	**
//	** Or, if iCol is negative, then the value is a delete marker.
//	*/
func _sqlite3Fts5HashWrite(tls *libc.TLS, pHash uintptr, iRowid Ti64, iCol int32, iPos int32, bByte int8, pToken uintptr, nToken int32) (r int32) {
	var bNew, nIncr, rc, v2 int32
	var iDiff Tu64
	var iHash uint32
	var nByte, nNew Tsqlite3_int64
	var p, pNew, pPtr, pp, zKey, zKey1, v6 uintptr
	_, _, _, _, _, _, _, _, _, _, _, _, _, _, _ = bNew, iDiff, iHash, nByte, nIncr, nNew, p, pNew, pPtr, pp, rc, zKey, zKey1, v2, v6
	nIncr = 0 /* If non-delete entry should be written */
	bNew = libc.BoolInt32((*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail == FTS5_DETAIL_FULL)
	/* Attempt to locate an existing hash entry */
	iHash = _fts5HashKey2(tls, (*TFts5Hash)(unsafe.Pointer(pHash)).FnSlot, libc.Uint8FromInt8(bByte), pToken, nToken)
	p = **(**uintptr)(__ccgo_up((*TFts5Hash)(unsafe.Pointer(pHash)).FaSlot + uintptr(iHash)*8))
	for {
		if !(p != 0) {
			break
		}
		zKey = p + 1*48
		if int32(**(**int8)(__ccgo_up(zKey))) == int32(bByte) && (*TFts5HashEntry)(unsafe.Pointer(p)).FnKey == nToken+int32(1) && libc.Xmemcmp(tls, zKey+1, pToken, libc.Uint64FromInt32(nToken)) == 0 {
			break
		}
		goto _1
	_1:
		;
		p = (*TFts5HashEntry)(unsafe.Pointer(p)).FpHashNext
	}
	/* If an existing hash entry cannot be found, create a new one. */
	if p == uintptr(0) {
		nByte = libc.Int64FromUint64(uint64(48) + libc.Uint64FromInt32(nToken+libc.Int32FromInt32(1)) + uint64(1) + uint64(64))
		if nByte < int64(128) {
			nByte = int64(128)
		}
		/* Grow the Fts5Hash.aSlot[] array if necessary. */
		if (*TFts5Hash)(unsafe.Pointer(pHash)).FnEntry*int32(2) >= (*TFts5Hash)(unsafe.Pointer(pHash)).FnSlot {
			rc = _fts5HashResize(tls, pHash)
			if rc != SQLITE_OK {
				return rc
			}
			iHash = _fts5HashKey2(tls, (*TFts5Hash)(unsafe.Pointer(pHash)).FnSlot, libc.Uint8FromInt8(bByte), pToken, nToken)
		}
		/* Allocate new Fts5HashEntry and add it to the hash table. */
		p = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(nByte))
		if !(p != 0) {
			return int32(SQLITE_NOMEM)
		}
		libc.Xmemset(tls, p, 0, uint64(48))
		(*TFts5HashEntry)(unsafe.Pointer(p)).FnAlloc = int32(nByte)
		zKey1 = p + 1*48
		**(**int8)(__ccgo_up(zKey1)) = bByte
		libc.Xmemcpy(tls, zKey1+1, pToken, libc.Uint64FromInt32(nToken))
		(*TFts5HashEntry)(unsafe.Pointer(p)).FnKey = nToken + int32(1)
		**(**int8)(__ccgo_up(zKey1 + uintptr(nToken+int32(1)))) = int8('\000')
		(*TFts5HashEntry)(unsafe.Pointer(p)).FnData = libc.Int32FromUint64(libc.Uint64FromInt32(nToken+int32(1)) + uint64(48))
		(*TFts5HashEntry)(unsafe.Pointer(p)).FpHashNext = **(**uintptr)(__ccgo_up((*TFts5Hash)(unsafe.Pointer(pHash)).FaSlot + uintptr(iHash)*8))
		**(**uintptr)(__ccgo_up((*TFts5Hash)(unsafe.Pointer(pHash)).FaSlot + uintptr(iHash)*8)) = p
		(*TFts5Hash)(unsafe.Pointer(pHash)).FnEntry = (*TFts5Hash)(unsafe.Pointer(pHash)).FnEntry + 1
		/* Add the first rowid field to the hash-entry */
		**(**int32)(__ccgo_up(p + 24)) += _sqlite3Fts5PutVarint(tls, p+uintptr((*TFts5HashEntry)(unsafe.Pointer(p)).FnData), libc.Uint64FromInt64(iRowid))
		(*TFts5HashEntry)(unsafe.Pointer(p)).FiRowid = iRowid
		(*TFts5HashEntry)(unsafe.Pointer(p)).FiSzPoslist = (*TFts5HashEntry)(unsafe.Pointer(p)).FnData
		if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail != int32(FTS5_DETAIL_NONE) {
			**(**int32)(__ccgo_up(p + 24)) += int32(1)
			if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail == FTS5_DETAIL_FULL {
				v2 = 0
			} else {
				v2 = -int32(1)
			}
			(*TFts5HashEntry)(unsafe.Pointer(p)).FiCol = int16(v2)
		}
	} else {
		/* Appending to an existing hash-entry. Check that there is enough
		 ** space to append the largest possible new entry. Worst case scenario
		 ** is:
		 **
		 **     + 9 bytes for a new rowid,
		 **     + 4 byte reserved for the "poslist size" varint.
		 **     + 1 byte for a "new column" byte,
		 **     + 3 bytes for a new column number (16-bit max) as a varint,
		 **     + 5 bytes for the new position offset (32-bit max).
		 */
		if (*TFts5HashEntry)(unsafe.Pointer(p)).FnAlloc-(*TFts5HashEntry)(unsafe.Pointer(p)).FnData < libc.Int32FromInt32(9)+libc.Int32FromInt32(4)+libc.Int32FromInt32(1)+libc.Int32FromInt32(3)+libc.Int32FromInt32(5) {
			nNew = int64((*TFts5HashEntry)(unsafe.Pointer(p)).FnAlloc * int32(2))
			pNew = Xsqlite3_realloc64(tls, p, libc.Uint64FromInt64(nNew))
			if pNew == uintptr(0) {
				return int32(SQLITE_NOMEM)
			}
			(*TFts5HashEntry)(unsafe.Pointer(pNew)).FnAlloc = int32(nNew)
			pp = (*TFts5Hash)(unsafe.Pointer(pHash)).FaSlot + uintptr(iHash)*8
			for {
				if !(**(**uintptr)(__ccgo_up(pp)) != p) {
					break
				}
				goto _3
			_3:
				;
				pp = **(**uintptr)(__ccgo_up(pp))
			}
			**(**uintptr)(__ccgo_up(pp)) = pNew
			p = pNew
		}
		nIncr = nIncr - (*TFts5HashEntry)(unsafe.Pointer(p)).FnData
	}
	pPtr = p
	/* If this is a new rowid, append the 4-byte size field for the previous
	 ** entry, and the new rowid for this entry.  */
	if iRowid != (*TFts5HashEntry)(unsafe.Pointer(p)).FiRowid {
		iDiff = libc.Uint64FromInt64(iRowid) - libc.Uint64FromInt64((*TFts5HashEntry)(unsafe.Pointer(p)).FiRowid)
		_fts5HashAddPoslistSize(tls, pHash, p, uintptr(0))
		**(**int32)(__ccgo_up(p + 24)) += _sqlite3Fts5PutVarint(tls, pPtr+uintptr((*TFts5HashEntry)(unsafe.Pointer(p)).FnData), iDiff)
		(*TFts5HashEntry)(unsafe.Pointer(p)).FiRowid = iRowid
		bNew = int32(1)
		(*TFts5HashEntry)(unsafe.Pointer(p)).FiSzPoslist = (*TFts5HashEntry)(unsafe.Pointer(p)).FnData
		if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail != int32(FTS5_DETAIL_NONE) {
			**(**int32)(__ccgo_up(p + 24)) += int32(1)
			if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail == FTS5_DETAIL_FULL {
				v2 = 0
			} else {
				v2 = -int32(1)
			}
			(*TFts5HashEntry)(unsafe.Pointer(p)).FiCol = int16(v2)
			(*TFts5HashEntry)(unsafe.Pointer(p)).FiPos = 0
		}
	}
	if iCol >= 0 {
		if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail == int32(FTS5_DETAIL_NONE) {
			(*TFts5HashEntry)(unsafe.Pointer(p)).FbContent = uint8(1)
		} else {
			/* Append a new column value, if necessary */
			if iCol != int32((*TFts5HashEntry)(unsafe.Pointer(p)).FiCol) {
				if (*TFts5Hash)(unsafe.Pointer(pHash)).FeDetail == FTS5_DETAIL_FULL {
					v6 = p + 24
					v2 = *(*int32)(unsafe.Pointer(v6))
					*(*int32)(unsafe.Pointer(v6)) = *(*int32)(unsafe.Pointer(v6)) + 1
					**(**Tu8)(__ccgo_up(pPtr + uintptr(v2))) = uint8(0x01)
					**(**int32)(__ccgo_up(p + 24)) += _sqlite3Fts5PutVarint(tls, pPtr+uintptr((*TFts5HashEntry)(unsafe.Pointer(p)).FnData), libc.Uint64FromInt32(iCol))
					(*TFts5HashEntry)(unsafe.Pointer(p)).FiCol = int16(iCol)
					(*TFts5HashEntry)(unsafe.Pointer(p)).FiPos = 0
				} else {
					bNew = int32(1)
					v2 = iCol
					iPos = v2
					(*TFts5HashEntry)(unsafe.Pointer(p)).FiCol = int16(v2)
				}
			}
			/* Append the new position offset, if necessary */
			if bNew != 0 {
				**(**int32)(__ccgo_up(p + 24)) += _sqlite3Fts5PutVarint(tls, pPtr+uintptr((*TFts5HashEntry)(unsafe.Pointer(p)).FnData), libc.Uint64FromInt32(iPos-(*TFts5HashEntry)(unsafe.Pointer(p)).FiPos+int32(2)))
				(*TFts5HashEntry)(unsafe.Pointer(p)).FiPos = iPos
			}
		}
	} else {
		/* This is a delete. Set the delete flag. */
		(*TFts5HashEntry)(unsafe.Pointer(p)).FbDel = uint8(1)
	}
	nIncr = nIncr + (*TFts5HashEntry)(unsafe.Pointer(p)).FnData
	**(**int32)(__ccgo_up((*TFts5Hash)(unsafe.Pointer(pHash)).FpnByte)) += nIncr
	return SQLITE_OK
}

// C documentation
//
//	/*
//	** Return a nul-terminated copy of the string indicated by pIn. If nIn
//	** is non-negative, then it is the length of the string in bytes. Otherwise,
//	** the length of the string is determined using strlen().
//	**
//	** It is the responsibility of the caller to eventually free the returned
//	** buffer using sqlite3_free(). If an OOM error occurs, NULL is returned.
//	*/
func _sqlite3Fts5Strndup(tls *libc.TLS, pRc uintptr, pIn uintptr, nIn int32) (r uintptr) {
	var zRet uintptr
	_ = zRet
	zRet = uintptr(0)
	if **(**int32)(__ccgo_up(pRc)) == SQLITE_OK {
		if nIn < 0 {
			nIn = libc.Int32FromUint64(libc.Xstrlen(tls, pIn))
		}
		zRet = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(int64(nIn)+int64(1)))
		if zRet != 0 {
			libc.Xmemcpy(tls, zRet, pIn, libc.Uint64FromInt32(nIn))
			**(**int8)(__ccgo_up(zRet + uintptr(nIn))) = int8('\000')
		} else {
			**(**int32)(__ccgo_up(pRc)) = int32(SQLITE_NOMEM)
		}
	}
	return zRet
}

func _sqlite3Fts5TermsetAdd(tls *libc.TLS, p uintptr, iIdx int32, pTerm uintptr, nTerm int32, pbPresent uintptr) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var hash Tu32
	var i int32
	var pEntry uintptr
	var _ /* rc at bp+0 */ int32
	_, _, _ = hash, i, pEntry
	**(**int32)(__ccgo_up(bp)) = SQLITE_OK
	**(**int32)(__ccgo_up(pbPresent)) = 0
	if p != 0 {
		hash = uint32(13)
		/* Calculate a hash value for this term. This is the same hash checksum
		 ** used by the fts5_hash.c module. This is not important for correct
		 ** operation of the module, but is necessary to ensure that some tests
		 ** designed to produce hash table collisions really do work.  */
		i = nTerm - int32(1)
		for {
			if !(i >= 0) {
				break
			}
			hash = hash<<libc.Int32FromInt32(3) ^ hash ^ libc.Uint32FromInt8(**(**int8)(__ccgo_up(pTerm + uintptr(i))))
			goto _1
		_1:
			;
			i = i - 1
		}
		hash = hash<<libc.Int32FromInt32(3) ^ hash ^ libc.Uint32FromInt32(iIdx)
		hash = hash % libc.Uint32FromInt32(libc.Int32FromUint64(libc.Uint64FromInt64(4096)/libc.Uint64FromInt64(8)))
		pEntry = **(**uintptr)(__ccgo_up(p + uintptr(hash)*8))
		for {
			if !(pEntry != 0) {
				break
			}
			if (*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FiIdx == iIdx && (*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FnTerm == nTerm && libc.Xmemcmp(tls, (*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FpTerm, pTerm, libc.Uint64FromInt32(nTerm)) == 0 {
				**(**int32)(__ccgo_up(pbPresent)) = int32(1)
				break
			}
			goto _2
		_2:
			;
			pEntry = (*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FpNext
		}
		if pEntry == uintptr(0) {
			pEntry = _sqlite3Fts5MallocZero(tls, bp, libc.Int64FromUint64(uint64(24)+libc.Uint64FromInt32(nTerm)))
			if pEntry != 0 {
				(*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FpTerm = pEntry + 1*24
				(*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FnTerm = nTerm
				(*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FiIdx = iIdx
				libc.Xmemcpy(tls, (*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FpTerm, pTerm, libc.Uint64FromInt32(nTerm))
				(*TFts5TermsetEntry)(unsafe.Pointer(pEntry)).FpNext = **(**uintptr)(__ccgo_up(p + uintptr(hash)*8))
				**(**uintptr)(__ccgo_up(p + uintptr(hash)*8)) = pEntry
			}
		}
	}
	return **(**int32)(__ccgo_up(bp))
}

// C documentation
//
//	/*
//	** If zNum represents an integer that will fit in 32-bits, then set
//	** *pValue to that integer and return true.  Otherwise return false.
//	**
//	** This routine accepts both decimal and hexadecimal notation for integers.
//	**
//	** Any non-numeric characters that following zNum are ignored.
//	** This is different from sqlite3Atoi64() which requires the
//	** input number to be zero-terminated.
//	*/
func _sqlite3GetInt32(tls *libc.TLS, zNum uintptr, pValue uintptr) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var c, i, neg, v3 int32
	var v Tsqlite_int64
	var v4 bool
	var _ /* u at bp+0 */ Tu32
	_, _, _, _, _, _ = c, i, neg, v, v3, v4
	v = 0
	neg = 0
	if int32(**(**int8)(__ccgo_up(zNum))) == int32('-') {
		neg = int32(1)
		zNum = zNum + 1
	} else {
		if int32(**(**int8)(__ccgo_up(zNum))) == int32('+') {
			zNum = zNum + 1
		} else {
			if int32(**(**int8)(__ccgo_up(zNum))) == int32('0') && (int32(**(**int8)(__ccgo_up(zNum + 1))) == int32('x') || int32(**(**int8)(__ccgo_up(zNum + 1))) == int32('X')) && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum + 2)))])&int32(0x08) != 0 {
				**(**Tu32)(__ccgo_up(bp)) = uint32(0)
				zNum = zNum + uintptr(2)
				for int32(**(**int8)(__ccgo_up(zNum))) == int32('0') {
					zNum = zNum + 1
				}
				i = 0
				for {
					if !(i < int32(8) && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum + uintptr(i))))])&int32(0x08) != 0) {
						break
					}
					**(**Tu32)(__ccgo_up(bp)) = **(**Tu32)(__ccgo_up(bp))*uint32(16) + uint32(_sqlite3HexToInt(tls, int32(**(**int8)(__ccgo_up(zNum + uintptr(i))))))
					goto _1
				_1:
					;
					i = i + 1
				}
				if **(**Tu32)(__ccgo_up(bp))&uint32(0x80000000) == uint32(0) && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum + uintptr(i))))])&int32(0x08) == 0 {
					libc.Xmemcpy(tls, pValue, bp, uint64(4))
					return int32(1)
				} else {
					return 0
				}
			}
		}
	}
	if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum)))])&libc.Int32FromInt32(0x04) != 0) {
		return 0
	}
	for int32(**(**int8)(__ccgo_up(zNum))) == int32('0') {
		zNum = zNum + 1
	}
	i = 0
	for {
		if v4 = i < int32(11); v4 {
			v3 = int32(**(**int8)(__ccgo_up(zNum + uintptr(i)))) - libc.Int32FromUint8('0')
			c = v3
		}
		if !(v4 && v3 >= 0 && c <= int32(9)) {
			break
		}
		v = v*int64(10) + int64(c)
		goto _2
	_2:
		;
		i = i + 1
	}
	/* The longest decimal representation of a 32 bit integer is 10 digits:
	 **
	 **             1234567890
	 **     2^31 -> 2147483648
	 */
	if i > int32(10) {
		return 0
	}
	if v-int64(neg) > int64(2147483647) {
		return 0
	}
	if neg != 0 {
		v = -v
	}
	**(**int32)(__ccgo_up(pValue)) = int32(v)
	return int32(1)
}

// C documentation
//
//	/*
//	** Render an signed 64-bit integer as text.  Store the result in zOut[] and
//	** return the length of the string that was stored, in bytes.  The value
//	** returned does not include the zero terminator at the end of the output
//	** string.
//	**
//	** The caller must ensure that zOut[] is at least 21 bytes in size.
//	*/
func _sqlite3Int64ToText(tls *libc.TLS, v Ti64, zOut uintptr) (r int32) {
	bp := tls.Alloc(32)
	defer tls.Free(32)
	var i, kk, v2 int32
	var x Tu64
	var v1 uint64
	var _ /* u at bp+0 */ struct {
		FforceAlignment [0]Tu16
		Fa              [21]int8
		F__ccgo_pad2    [1]byte
	}
	_, _, _, _, _ = i, kk, x, v1, v2
	if v > 0 {
		x = libc.Uint64FromInt64(v)
	} else {
		if v == 0 {
			**(**int8)(__ccgo_up(zOut)) = int8('0')
			**(**int8)(__ccgo_up(zOut + 1)) = 0
			return int32(1)
		} else {
			if v == int64(-libc.Int32FromInt32(1))-(libc.Int64FromUint32(0xffffffff)|libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32)) {
				v1 = libc.Uint64FromInt32(1) << libc.Int32FromInt32(63)
			} else {
				v1 = libc.Uint64FromInt64(-v)
			}
			x = v1
		}
	}
	i = libc.Int32FromUint64(libc.Uint64FromInt64(21) - libc.Uint64FromInt32(1))
	**(**int8)(__ccgo_up(bp + uintptr(i))) = 0
	for x >= uint64(10) {
		kk = libc.Int32FromUint64(x % uint64(100) * uint64(2))
		**(**Tu16)(__ccgo_up(bp + uintptr(i-int32(2)))) = **(**Tu16)(__ccgo_up(uintptr(unsafe.Pointer(&_sqlite3DigitPairs)) + uintptr(kk)))
		i = i - int32(2)
		x = x / uint64(100)
	}
	if x != 0 {
		i = i - 1
		v2 = i
		**(**int8)(__ccgo_up(bp + uintptr(v2))) = libc.Int8FromUint64(x + uint64('0'))
	}
	if v < 0 {
		i = i - 1
		v2 = i
		**(**int8)(__ccgo_up(bp + uintptr(v2))) = int8('-')
	}
	libc.Xmemcpy(tls, zOut, bp+uintptr(i), uint64(21)-libc.Uint64FromInt32(i))
	return libc.Int32FromUint64(libc.Uint64FromInt64(21) - libc.Uint64FromInt32(1) - libc.Uint64FromInt32(i))
}

// C documentation
//
//	/*
//	** pExpr points to an expression which implements a function.  If
//	** it is appropriate to apply the LIKE optimization to that function
//	** then set aWc[0] through aWc[2] to the wildcard characters and the
//	** escape character and then return TRUE.  If the function is not a
//	** LIKE-style function then return FALSE.
//	**
//	** The expression "a LIKE b ESCAPE c" is only considered a valid LIKE
//	** operator if c is a string literal that is exactly one byte in length.
//	** That one byte is stored in aWc[3].  aWc[3] is set to zero if there is
//	** no ESCAPE clause.
//	**
//	** *pIsNocase is set to true if uppercase and lowercase are equivalent for
//	** the function (default for LIKE).  If the function makes the distinction
//	** between uppercase and lowercase (as does GLOB) then *pIsNocase is set to
//	** false.
//	*/
func _sqlite3IsLikeFunction(tls *libc.TLS, db uintptr, pExpr uintptr, pIsNocase uintptr, aWc uintptr) (r int32) {
	var nExpr int32
	var pDef, pEscape, zEscape uintptr
	_, _, _, _ = nExpr, pDef, pEscape, zEscape
	if !(*(*uintptr)(unsafe.Pointer(pExpr + 32)) != 0) {
		return 0
	}
	nExpr = (*TExprList)(unsafe.Pointer(*(*uintptr)(unsafe.Pointer(pExpr + 32)))).FnExpr
	pDef = _sqlite3FindFunction(tls, db, *(*uintptr)(unsafe.Pointer(pExpr + 8)), nExpr, uint8(SQLITE_UTF8), uint8(0))
	if pDef == uintptr(0) || (*TFuncDef)(unsafe.Pointer(pDef)).FfuncFlags&uint32(SQLITE_FUNC_LIKE) == uint32(0) {
		return 0
	}
	/* The memcpy() statement assumes that the wildcard characters are
	 ** the first three statements in the compareInfo structure.  The
	 ** asserts() that follow verify that assumption
	 */
	libc.Xmemcpy(tls, aWc, (*TFuncDef)(unsafe.Pointer(pDef)).FpUserData, uint64(3))
	if nExpr < int32(3) {
		**(**int8)(__ccgo_up(aWc + 3)) = 0
	} else {
		pEscape = (*(*TExprList_item)(unsafe.Pointer(*(*uintptr)(unsafe.Pointer(pExpr + 32)) + 8 + 2*32))).FpExpr
		if libc.Int32FromUint8((*TExpr)(unsafe.Pointer(pEscape)).Fop) != int32(TK_STRING) {
			return 0
		}
		zEscape = *(*uintptr)(unsafe.Pointer(pEscape + 8))
		if int32(**(**int8)(__ccgo_up(zEscape))) == 0 || int32(**(**int8)(__ccgo_up(zEscape + 1))) != 0 {
			return 0
		}
		if int32(**(**int8)(__ccgo_up(zEscape))) == int32(**(**int8)(__ccgo_up(aWc))) {
			return 0
		}
		if int32(**(**int8)(__ccgo_up(zEscape))) == int32(**(**int8)(__ccgo_up(aWc + 1))) {
			return 0
		}
		**(**int8)(__ccgo_up(aWc + 3)) = **(**int8)(__ccgo_up(zEscape))
	}
	**(**int32)(__ccgo_up(pIsNocase)) = libc.BoolInt32((*TFuncDef)(unsafe.Pointer(pDef)).FfuncFlags&uint32(SQLITE_FUNC_CASE) == uint32(0))
	return int32(1)
}

/* Mathematical Constants */

// C documentation
//
//	/*
//	** Add a new name/number pair to a VList.  This might require that the
//	** VList object be reallocated, so return the new VList.  If an OOM
//	** error occurs, the original VList returned and the
//	** db->mallocFailed flag is set.
//	**
//	** A VList is really just an array of integers.  To destroy a VList,
//	** simply pass it to sqlite3DbFree().
//	**
//	** The first integer is the number of integers allocated for the whole
//	** VList.  The second integer is the number of integers actually used.
//	** Each name/number pair is encoded by subsequent groups of 3 or more
//	** integers.
//	**
//	** Each name/number pair starts with two integers which are the numeric
//	** value for the pair and the size of the name/number pair, respectively.
//	** The text name overlays one or more following integers.  The text name
//	** is always zero-terminated.
//	**
//	** Conceptually:
//	**
//	**    struct VList {
//	**      int nAlloc;   // Number of allocated slots
//	**      int nUsed;    // Number of used slots
//	**      struct VListEntry {
//	**        int iValue;    // Value for this entry
//	**        int nSlot;     // Slots used by this entry
//	**        // ... variable name goes here
//	**      } a[0];
//	**    }
//	**
//	** During code generation, pointers to the variable names within the
//	** VList are taken.  When that happens, nAlloc is set to zero as an
//	** indication that the VList may never again be enlarged, since the
//	** accompanying realloc() would invalidate the pointers.
//	*/
func _sqlite3VListAdd(tls *libc.TLS, db uintptr, pIn uintptr, zName uintptr, nName int32, iVal int32) (r uintptr) {
	var i, nInt int32
	var nAlloc Tsqlite3_int64
	var pOut, z uintptr
	var v1 int64
	_, _, _, _, _, _ = i, nAlloc, nInt, pOut, z, v1 /* Index in pIn[] where zName is stored */
	nInt = nName/int32(4) + int32(3)
	/* Verify ok to add new elements */
	if pIn == uintptr(0) || **(**TVList)(__ccgo_up(pIn + 1*4))+nInt > **(**TVList)(__ccgo_up(pIn)) {
		if pIn != 0 {
			v1 = int64(2) * int64(**(**TVList)(__ccgo_up(pIn)))
		} else {
			v1 = int64(10)
		}
		/* Enlarge the allocation */
		nAlloc = v1 + int64(nInt)
		pOut = _sqlite3DbRealloc(tls, db, pIn, libc.Uint64FromInt64(nAlloc)*uint64(4))
		if pOut == uintptr(0) {
			return pIn
		}
		if pIn == uintptr(0) {
			**(**TVList)(__ccgo_up(pOut + 1*4)) = int32(2)
		}
		pIn = pOut
		**(**TVList)(__ccgo_up(pIn)) = int32(nAlloc)
	}
	i = **(**TVList)(__ccgo_up(pIn + 1*4))
	**(**TVList)(__ccgo_up(pIn + uintptr(i)*4)) = iVal
	**(**TVList)(__ccgo_up(pIn + uintptr(i+int32(1))*4)) = nInt
	z = pIn + uintptr(i+int32(2))*4
	**(**TVList)(__ccgo_up(pIn + 1*4)) = i + nInt
	libc.Xmemcpy(tls, z, zName, libc.Uint64FromInt32(nName))
	**(**int8)(__ccgo_up(z + uintptr(nName))) = 0
	return pIn
}

// C documentation
//
//	/*
//	** This routine checks for a byte-order mark at the beginning of the
//	** UTF-16 string stored in *pMem. If one is present, it is removed and
//	** the encoding of the Mem adjusted. This routine does not do any
//	** byte-swapping, it just sets Mem.enc appropriately.
//	**
//	** The allocation (static, dynamic etc.) and encoding of the Mem may be
//	** changed by this function.
//	*/
func _sqlite3VdbeMemHandleBom(tls *libc.TLS, pMem uintptr) (r int32) {
	var b1, b2, bom Tu8
	var rc int32
	var v1 uintptr
	_, _, _, _, _ = b1, b2, bom, rc, v1
	rc = SQLITE_OK
	bom = uint8(0)
	if (*TMem)(unsafe.Pointer(pMem)).Fn > int32(1) {
		b1 = **(**Tu8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz))
		b2 = **(**Tu8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz + libc.UintptrFromInt32(1)))
		if libc.Int32FromUint8(b1) == int32(0xFE) && libc.Int32FromUint8(b2) == int32(0xFF) {
			bom = uint8(SQLITE_UTF16BE)
		}
		if libc.Int32FromUint8(b1) == int32(0xFF) && libc.Int32FromUint8(b2) == int32(0xFE) {
			bom = uint8(SQLITE_UTF16LE)
		}
	}
	if bom != 0 {
		rc = _sqlite3VdbeMemMakeWriteable(tls, pMem)
		if rc == SQLITE_OK {
			**(**int32)(__ccgo_up(pMem + 16)) -= int32(2)
			libc.Xmemmove(tls, (*TMem)(unsafe.Pointer(pMem)).Fz, (*TMem)(unsafe.Pointer(pMem)).Fz+2, libc.Uint64FromInt32((*TMem)(unsafe.Pointer(pMem)).Fn))
			**(**int8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz + uintptr((*TMem)(unsafe.Pointer(pMem)).Fn))) = int8('\000')
			**(**int8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz + uintptr((*TMem)(unsafe.Pointer(pMem)).Fn+int32(1)))) = int8('\000')
			v1 = pMem + 20
			*(*Tu16)(unsafe.Pointer(v1)) = Tu16(int32(*(*Tu16)(unsafe.Pointer(v1))) | libc.Int32FromInt32(MEM_Term))
			(*TMem)(unsafe.Pointer(pMem)).Fenc = bom
		}
	}
	return rc
}

// C documentation
//
//	/*
//	** Change the value of a Mem to be a string or a BLOB.
//	**
//	** The memory management strategy depends on the value of the xDel
//	** parameter. If the value passed is SQLITE_TRANSIENT, then the
//	** string is copied into a (possibly existing) buffer managed by the
//	** Mem structure. Otherwise, any existing buffer is freed and the
//	** pointer copied.
//	**
//	** If the string is too large (if it exceeds the SQLITE_LIMIT_LENGTH
//	** size limit) then no memory allocation occurs.  If the string can be
//	** stored without allocating memory, then it is.  If a memory allocation
//	** is required to store the string, then value of pMem is unchanged.  In
//	** either case, SQLITE_TOOBIG is returned.
//	**
//	** The "enc" parameter is the text encoding for the string, or zero
//	** to store a blob.
//	**
//	** If n is negative, then the string consists of all bytes up to but
//	** excluding the first zero character.  The n parameter must be
//	** non-negative for blobs.
//	*/
func _sqlite3VdbeMemSetStr(tls *libc.TLS, pMem uintptr, z uintptr, n Ti64, enc Tu8, __ccgo_fp_xDel uintptr) (r int32) {
	var flags Tu16
	var iLimit, v2 int32
	var nAlloc, nByte Ti64
	var v3 int64
	_, _, _, _, _, _ = flags, iLimit, nAlloc, nByte, v2, v3
	nByte = n /* New value for pMem->flags */
	/* If z is a NULL pointer, set pMem to contain an SQL NULL. */
	if !(z != 0) {
		_sqlite3VdbeMemSetNull(tls, pMem)
		return SQLITE_OK
	}
	if (*TMem)(unsafe.Pointer(pMem)).Fdb != 0 {
		iLimit = **(**int32)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fdb + 136))
	} else {
		iLimit = int32(SQLITE_MAX_LENGTH)
	}
	if nByte < 0 {
		if libc.Int32FromUint8(enc) == int32(SQLITE_UTF8) {
			nByte = libc.Int64FromUint64(libc.Xstrlen(tls, z))
		} else {
			nByte = 0
			for {
				if !(nByte <= int64(iLimit) && int32(**(**int8)(__ccgo_up(z + uintptr(nByte))))|int32(**(**int8)(__ccgo_up(z + uintptr(nByte+int64(1))))) != 0) {
					break
				}
				goto _1
			_1:
				;
				nByte = nByte + int64(2)
			}
		}
		flags = libc.Uint16FromInt32(libc.Int32FromInt32(MEM_Str) | libc.Int32FromInt32(MEM_Term))
	} else {
		if libc.Int32FromUint8(enc) == 0 {
			flags = uint16(MEM_Blob)
			enc = uint8(SQLITE_UTF8)
		} else {
			flags = uint16(MEM_Str)
		}
	}
	if nByte > int64(iLimit) {
		if __ccgo_fp_xDel != 0 && __ccgo_fp_xDel != uintptr(-libc.Int32FromInt32(1)) {
			if __ccgo_fp_xDel == __ccgo_fp(_sqlite3RowSetClear) {
				_sqlite3DbFree(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, z)
			} else {
				(*(*func(*libc.TLS, uintptr))(unsafe.Pointer(&struct{ uintptr }{__ccgo_fp_xDel})))(tls, z)
			}
		}
		_sqlite3VdbeMemSetNull(tls, pMem)
		return _sqlite3ErrorToParser(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, int32(SQLITE_TOOBIG))
	}
	/* The following block sets the new values of Mem.z and Mem.xDel. It
	 ** also sets a flag in local variable "flags" to indicate the memory
	 ** management (one of MEM_Dyn or MEM_Static).
	 */
	if __ccgo_fp_xDel == uintptr(-libc.Int32FromInt32(1)) {
		nAlloc = nByte
		if libc.Int32FromUint16(flags)&int32(MEM_Term) != 0 {
			if libc.Int32FromUint8(enc) == int32(SQLITE_UTF8) {
				v2 = int32(1)
			} else {
				v2 = int32(2)
			}
			nAlloc = nAlloc + int64(v2)
		}
		if nAlloc > int64(libc.Int32FromInt32(32)) {
			v3 = nAlloc
		} else {
			v3 = int64(libc.Int32FromInt32(32))
		}
		if _sqlite3VdbeMemClearAndResize(tls, pMem, int32(v3)) != 0 {
			return int32(SQLITE_NOMEM)
		}
		libc.Xmemcpy(tls, (*TMem)(unsafe.Pointer(pMem)).Fz, z, libc.Uint64FromInt64(nAlloc))
	} else {
		_sqlite3VdbeMemRelease(tls, pMem)
		(*TMem)(unsafe.Pointer(pMem)).Fz = z
		if __ccgo_fp_xDel == __ccgo_fp(_sqlite3RowSetClear) {
			(*TMem)(unsafe.Pointer(pMem)).FzMalloc = (*TMem)(unsafe.Pointer(pMem)).Fz
			(*TMem)(unsafe.Pointer(pMem)).FszMalloc = _sqlite3DbMallocSize(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, (*TMem)(unsafe.Pointer(pMem)).FzMalloc)
		} else {
			(*TMem)(unsafe.Pointer(pMem)).FxDel = __ccgo_fp_xDel
			if __ccgo_fp_xDel == libc.UintptrFromInt32(0) {
				v2 = int32(MEM_Static)
			} else {
				v2 = int32(MEM_Dyn)
			}
			flags = libc.Uint16FromInt32(int32(flags) | v2)
		}
	}
	(*TMem)(unsafe.Pointer(pMem)).Fn = int32(nByte & libc.Int64FromInt32(0x7fffffff))
	(*TMem)(unsafe.Pointer(pMem)).Fflags = flags
	(*TMem)(unsafe.Pointer(pMem)).Fenc = enc
	if libc.Int32FromUint8(enc) > int32(SQLITE_UTF8) && _sqlite3VdbeMemHandleBom(tls, pMem) != 0 {
		return int32(SQLITE_NOMEM)
	}
	return SQLITE_OK
}

// C documentation
//
//	/* Like sqlite3VdbeMemSetStr() except:
//	**
//	**   enc is always SQLITE_UTF8
//	**   pMem->db is always non-NULL
//	*/
func _sqlite3VdbeMemSetText(tls *libc.TLS, pMem uintptr, z uintptr, n Ti64, __ccgo_fp_xDel uintptr) (r int32) {
	var flags Tu16
	var nAlloc, nByte Ti64
	var v1 int64
	_, _, _, _ = flags, nAlloc, nByte, v1
	nByte = n
	/* If z is a NULL pointer, set pMem to contain an SQL NULL. */
	if !(z != 0) {
		_sqlite3VdbeMemSetNull(tls, pMem)
		return SQLITE_OK
	}
	if nByte < 0 {
		nByte = libc.Int64FromUint64(libc.Xstrlen(tls, z))
		flags = libc.Uint16FromInt32(libc.Int32FromInt32(MEM_Str) | libc.Int32FromInt32(MEM_Term))
	} else {
		flags = uint16(MEM_Str)
	}
	if nByte > int64(**(**int32)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fdb + 136))) {
		if __ccgo_fp_xDel != 0 && __ccgo_fp_xDel != uintptr(-libc.Int32FromInt32(1)) {
			if __ccgo_fp_xDel == __ccgo_fp(_sqlite3RowSetClear) {
				_sqlite3DbFree(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, z)
			} else {
				(*(*func(*libc.TLS, uintptr))(unsafe.Pointer(&struct{ uintptr }{__ccgo_fp_xDel})))(tls, z)
			}
		}
		_sqlite3VdbeMemSetNull(tls, pMem)
		return _sqlite3ErrorToParser(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, int32(SQLITE_TOOBIG))
	}
	/* The following block sets the new values of Mem.z and Mem.xDel. It
	 ** also sets a flag in local variable "flags" to indicate the memory
	 ** management (one of MEM_Dyn or MEM_Static).
	 */
	if __ccgo_fp_xDel == uintptr(-libc.Int32FromInt32(1)) {
		nAlloc = nByte + int64(1)
		if nAlloc > int64(libc.Int32FromInt32(32)) {
			v1 = nAlloc
		} else {
			v1 = int64(libc.Int32FromInt32(32))
		}
		if _sqlite3VdbeMemClearAndResize(tls, pMem, int32(v1)) != 0 {
			return int32(SQLITE_NOMEM)
		}
		libc.Xmemcpy(tls, (*TMem)(unsafe.Pointer(pMem)).Fz, z, libc.Uint64FromInt64(nByte))
		**(**int8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz + uintptr(nByte))) = 0
	} else {
		_sqlite3VdbeMemRelease(tls, pMem)
		(*TMem)(unsafe.Pointer(pMem)).Fz = z
		if __ccgo_fp_xDel == __ccgo_fp(_sqlite3RowSetClear) {
			(*TMem)(unsafe.Pointer(pMem)).FzMalloc = (*TMem)(unsafe.Pointer(pMem)).Fz
			(*TMem)(unsafe.Pointer(pMem)).FszMalloc = _sqlite3DbMallocSize(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, (*TMem)(unsafe.Pointer(pMem)).FzMalloc)
			(*TMem)(unsafe.Pointer(pMem)).FxDel = uintptr(0)
		} else {
			if __ccgo_fp_xDel == libc.UintptrFromInt32(0) {
				(*TMem)(unsafe.Pointer(pMem)).FxDel = __ccgo_fp_xDel
				flags = libc.Uint16FromInt32(int32(flags) | libc.Int32FromInt32(MEM_Static))
			} else {
				(*TMem)(unsafe.Pointer(pMem)).FxDel = __ccgo_fp_xDel
				flags = libc.Uint16FromInt32(int32(flags) | libc.Int32FromInt32(MEM_Dyn))
			}
		}
	}
	(*TMem)(unsafe.Pointer(pMem)).Fflags = flags
	(*TMem)(unsafe.Pointer(pMem)).Fn = int32(nByte & libc.Int64FromInt32(0x7fffffff))
	(*TMem)(unsafe.Pointer(pMem)).Fenc = uint8(SQLITE_UTF8)
	return SQLITE_OK
}

// C documentation
//
//	/*
//	** If the SELECT statement passed as the second argument does not invoke
//	** any SQL window functions, this function is a no-op. Otherwise, it
//	** rewrites the SELECT statement so that window function xStep functions
//	** are invoked in the correct order as described under "SELECT REWRITING"
//	** at the top of this file.
//	*/
func _sqlite3WindowRewrite(tls *libc.TLS, pParse uintptr, p uintptr) (r int32) {
	bp := tls.Alloc(64)
	defer tls.Free(64)
	var db, pArgs, pFilter, pGroupBy, pHaving, pMWin, pSort, pSrc, pSub, pTab, pTab2, pWhere, pWin, v, v2 uintptr
	var nSave, rc, v1 int32
	var selFlags Tu32
	var _ /* pSublist at bp+0 */ uintptr
	var _ /* w at bp+8 */ TWalker
	_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ = db, nSave, pArgs, pFilter, pGroupBy, pHaving, pMWin, pSort, pSrc, pSub, pTab, pTab2, pWhere, pWin, rc, selFlags, v, v1, v2
	rc = SQLITE_OK
	if (*TSelect)(unsafe.Pointer(p)).FpWin != 0 && (*TSelect)(unsafe.Pointer(p)).FpPrior == uintptr(0) && (*TSelect)(unsafe.Pointer(p)).FselFlags&uint32(SF_WinRewrite) == uint32(0) && !(libc.Int32FromUint8((*TParse)(unsafe.Pointer(pParse)).FeParseMode) >= libc.Int32FromInt32(PARSE_MODE_RENAME)) {
		v = _sqlite3GetVdbe(tls, pParse)
		db = (*TParse)(unsafe.Pointer(pParse)).Fdb
		pSub = uintptr(0) /* The subquery */
		pSrc = (*TSelect)(unsafe.Pointer(p)).FpSrc
		pWhere = (*TSelect)(unsafe.Pointer(p)).FpWhere
		pGroupBy = (*TSelect)(unsafe.Pointer(p)).FpGroupBy
		pHaving = (*TSelect)(unsafe.Pointer(p)).FpHaving
		pSort = uintptr(0)
		**(**uintptr)(__ccgo_up(bp)) = uintptr(0) /* Expression list for sub-query */
		pMWin = (*TSelect)(unsafe.Pointer(p)).FpWin
		selFlags = (*TSelect)(unsafe.Pointer(p)).FselFlags
		pTab = _sqlite3DbMallocZero(tls, db, uint64(120))
		if pTab == uintptr(0) {
			return _sqlite3ErrorToParser(tls, db, int32(SQLITE_NOMEM))
		}
		_sqlite3AggInfoPersistWalkerInit(tls, bp+8, pParse)
		_sqlite3WalkSelect(tls, bp+8, p)
		if (*TSelect)(unsafe.Pointer(p)).FselFlags&uint32(SF_Aggregate) == uint32(0) {
			(**(**TWalker)(__ccgo_up(bp + 8))).FxExprCallback = __ccgo_fp(_disallowAggregatesInOrderByCb)
			(**(**TWalker)(__ccgo_up(bp + 8))).FxSelectCallback = uintptr(0)
			_sqlite3WalkExprList(tls, bp+8, (*TSelect)(unsafe.Pointer(p)).FpOrderBy)
		}
		(*TSelect)(unsafe.Pointer(p)).FpSrc = uintptr(0)
		(*TSelect)(unsafe.Pointer(p)).FpWhere = uintptr(0)
		(*TSelect)(unsafe.Pointer(p)).FpGroupBy = uintptr(0)
		(*TSelect)(unsafe.Pointer(p)).FpHaving = uintptr(0)
		**(**Tu32)(__ccgo_up(p + 4)) &= ^libc.Uint32FromInt32(SF_Aggregate)
		**(**Tu32)(__ccgo_up(p + 4)) |= uint32(SF_WinRewrite)
		/* Create the ORDER BY clause for the sub-select. This is the concatenation
		 ** of the window PARTITION and ORDER BY clauses. Then, if this makes it
		 ** redundant, remove the ORDER BY from the parent SELECT.  */
		pSort = _exprListAppendList(tls, pParse, uintptr(0), (*TWindow)(unsafe.Pointer(pMWin)).FpPartition, int32(1))
		pSort = _exprListAppendList(tls, pParse, pSort, (*TWindow)(unsafe.Pointer(pMWin)).FpOrderBy, int32(1))
		if pSort != 0 && (*TSelect)(unsafe.Pointer(p)).FpOrderBy != 0 && (*TExprList)(unsafe.Pointer((*TSelect)(unsafe.Pointer(p)).FpOrderBy)).FnExpr <= (*TExprList)(unsafe.Pointer(pSort)).FnExpr {
			nSave = (*TExprList)(unsafe.Pointer(pSort)).FnExpr
			(*TExprList)(unsafe.Pointer(pSort)).FnExpr = (*TExprList)(unsafe.Pointer((*TSelect)(unsafe.Pointer(p)).FpOrderBy)).FnExpr
			if _sqlite3ExprListCompare(tls, pSort, (*TSelect)(unsafe.Pointer(p)).FpOrderBy, -int32(1)) == 0 {
				_sqlite3ExprListDelete(tls, db, (*TSelect)(unsafe.Pointer(p)).FpOrderBy)
				(*TSelect)(unsafe.Pointer(p)).FpOrderBy = uintptr(0)
			}
			(*TExprList)(unsafe.Pointer(pSort)).FnExpr = nSave
		}
		/* Assign a cursor number for the ephemeral table used to buffer rows.
		 ** The OpenEphemeral instruction is coded later, after it is known how
		 ** many columns the table will have.  */
		v2 = pParse + 56
		v1 = *(*int32)(unsafe.Pointer(v2))
		*(*int32)(unsafe.Pointer(v2)) = *(*int32)(unsafe.Pointer(v2)) + 1
		(*TWindow)(unsafe.Pointer(pMWin)).FiEphCsr = v1
		**(**int32)(__ccgo_up(pParse + 56)) += int32(3)
		_selectWindowRewriteEList(tls, pParse, pMWin, pSrc, (*TSelect)(unsafe.Pointer(p)).FpEList, pTab, bp)
		_selectWindowRewriteEList(tls, pParse, pMWin, pSrc, (*TSelect)(unsafe.Pointer(p)).FpOrderBy, pTab, bp)
		if **(**uintptr)(__ccgo_up(bp)) != 0 {
			v1 = (*TExprList)(unsafe.Pointer(**(**uintptr)(__ccgo_up(bp)))).FnExpr
		} else {
			v1 = 0
		}
		(*TWindow)(unsafe.Pointer(pMWin)).FnBufferCol = v1
		/* Append the PARTITION BY and ORDER BY expressions to the to the
		 ** sub-select expression list. They are required to figure out where
		 ** boundaries for partitions and sets of peer rows lie.  */
		**(**uintptr)(__ccgo_up(bp)) = _exprListAppendList(tls, pParse, **(**uintptr)(__ccgo_up(bp)), (*TWindow)(unsafe.Pointer(pMWin)).FpPartition, 0)
		**(**uintptr)(__ccgo_up(bp)) = _exprListAppendList(tls, pParse, **(**uintptr)(__ccgo_up(bp)), (*TWindow)(unsafe.Pointer(pMWin)).FpOrderBy, 0)
		/* Append the arguments passed to each window function to the
		 ** sub-select expression list. Also allocate two registers for each
		 ** window function - one for the accumulator, another for interim
		 ** results.  */
		pWin = pMWin
		for {
			if !(pWin != 0) {
				break
			}
			pArgs = *(*uintptr)(unsafe.Pointer((*TWindow)(unsafe.Pointer(pWin)).FpOwner + 32))
			if (*TFuncDef)(unsafe.Pointer((*TWindow)(unsafe.Pointer(pWin)).FpWFunc)).FfuncFlags&uint32(SQLITE_SUBTYPE) != 0 {
				_selectWindowRewriteEList(tls, pParse, pMWin, pSrc, pArgs, pTab, bp)
				if **(**uintptr)(__ccgo_up(bp)) != 0 {
					v1 = (*TExprList)(unsafe.Pointer(**(**uintptr)(__ccgo_up(bp)))).FnExpr
				} else {
					v1 = 0
				}
				(*TWindow)(unsafe.Pointer(pWin)).FiArgCol = v1
				(*TWindow)(unsafe.Pointer(pWin)).FbExprArgs = uint8(1)
			} else {
				if **(**uintptr)(__ccgo_up(bp)) != 0 {
					v1 = (*TExprList)(unsafe.Pointer(**(**uintptr)(__ccgo_up(bp)))).FnExpr
				} else {
					v1 = 0
				}
				(*TWindow)(unsafe.Pointer(pWin)).FiArgCol = v1
				**(**uintptr)(__ccgo_up(bp)) = _exprListAppendList(tls, pParse, **(**uintptr)(__ccgo_up(bp)), pArgs, 0)
			}
			if (*TWindow)(unsafe.Pointer(pWin)).FpFilter != 0 {
				pFilter = _sqlite3ExprDup(tls, db, (*TWindow)(unsafe.Pointer(pWin)).FpFilter, 0)
				**(**uintptr)(__ccgo_up(bp)) = _sqlite3ExprListAppend(tls, pParse, **(**uintptr)(__ccgo_up(bp)), pFilter)
			}
			v2 = pParse + 60
			*(*int32)(unsafe.Pointer(v2)) = *(*int32)(unsafe.Pointer(v2)) + 1
			v1 = *(*int32)(unsafe.Pointer(v2))
			(*TWindow)(unsafe.Pointer(pWin)).FregAccum = v1
			v2 = pParse + 60
			*(*int32)(unsafe.Pointer(v2)) = *(*int32)(unsafe.Pointer(v2)) + 1
			v1 = *(*int32)(unsafe.Pointer(v2))
			(*TWindow)(unsafe.Pointer(pWin)).FregResult = v1
			_sqlite3VdbeAddOp2(tls, v, int32(OP_Null), 0, (*TWindow)(unsafe.Pointer(pWin)).FregAccum)
			goto _4
		_4:
			;
			pWin = (*TWindow)(unsafe.Pointer(pWin)).FpNextWin
		}
		/* If there is no ORDER BY or PARTITION BY clause, and the window
		 ** function accepts zero arguments, and there are no other columns
		 ** selected (e.g. "SELECT row_number() OVER () FROM t1"), it is possible
		 ** that pSublist is still NULL here. Add a constant expression here to
		 ** keep everything legal in this case.
		 */
		if **(**uintptr)(__ccgo_up(bp)) == uintptr(0) {
			**(**uintptr)(__ccgo_up(bp)) = _sqlite3ExprListAppend(tls, pParse, uintptr(0), _sqlite3ExprInt32(tls, db, 0))
		}
		pSub = _sqlite3SelectNew(tls, pParse, **(**uintptr)(__ccgo_up(bp)), pSrc, pWhere, pGroupBy, pHaving, pSort, uint32(0), uintptr(0))
		(*TSelect)(unsafe.Pointer(p)).FpSrc = _sqlite3SrcListAppend(tls, pParse, uintptr(0), uintptr(0), uintptr(0))
		/* Due to db->mallocFailed test inside
		 ** of sqlite3DbMallocRawNN() called from
		 ** sqlite3SrcListAppend() */
		if (*TSelect)(unsafe.Pointer(p)).FpSrc == uintptr(0) {
			_sqlite3SelectDelete(tls, db, pSub)
		} else {
			if _sqlite3SrcItemAttachSubquery(tls, pParse, (*TSelect)(unsafe.Pointer(p)).FpSrc+8, pSub, 0) != 0 {
				libc.SetBitFieldPtr32Uint32((*TSelect)(unsafe.Pointer(p)).FpSrc+8+24+4, libc.Uint32FromInt32(1), 4, 0x10)
				_sqlite3SrcListAssignCursors(tls, pParse, (*TSelect)(unsafe.Pointer(p)).FpSrc)
				**(**Tu32)(__ccgo_up(pSub + 4)) |= libc.Uint32FromInt32(libc.Int32FromInt32(SF_Expanded) | libc.Int32FromInt32(SF_OrderByReqd))
				pTab2 = _sqlite3ResultSetOfSelect(tls, pParse, pSub, int8(SQLITE_AFF_NONE))
				**(**Tu32)(__ccgo_up(pSub + 4)) |= selFlags & uint32(SF_Aggregate)
				if pTab2 == uintptr(0) {
					/* Might actually be some other kind of error, but in that case
					 ** pParse->nErr will be set, so if SQLITE_NOMEM is set, we will get
					 ** the correct error message regardless. */
					rc = int32(SQLITE_NOMEM)
				} else {
					libc.Xmemcpy(tls, pTab, pTab2, uint64(120))
					**(**Tu32)(__ccgo_up(pTab + 48)) |= uint32(TF_Ephemeral)
					(*(*TSrcItem)(unsafe.Pointer((*TSelect)(unsafe.Pointer(p)).FpSrc + 8))).FpSTab = pTab
					pTab = pTab2
					libc.Xmemset(tls, bp+8, 0, uint64(48))
					(**(**TWalker)(__ccgo_up(bp + 8))).FxExprCallback = __ccgo_fp(_sqlite3WindowExtraAggFuncDepth)
					(**(**TWalker)(__ccgo_up(bp + 8))).FxSelectCallback = __ccgo_fp(_sqlite3WalkerDepthIncrease)
					(**(**TWalker)(__ccgo_up(bp + 8))).FxSelectCallback2 = __ccgo_fp(_sqlite3WalkerDepthDecrease)
					_sqlite3WalkSelect(tls, bp+8, pSub)
				}
			}
		}
		if (*Tsqlite3)(unsafe.Pointer(db)).FmallocFailed != 0 {
			rc = int32(SQLITE_NOMEM)
		}
		/* Defer deleting the temporary table pTab because if an error occurred,
		 ** there could still be references to that table embedded in the
		 ** result-set or ORDER BY clause of the SELECT statement p.  */
		_sqlite3ParserAddCleanup(tls, pParse, __ccgo_fp(_sqlite3DbFree), pTab)
	}
	return rc
}

// C documentation
//
//	/* Construct a new Expr object from a single token */
func _tokenExpr(tls *libc.TLS, pParse uintptr, op int32, _t TToken) (r uintptr) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	*(*TToken)(unsafe.Pointer(bp)) = _t
	var p, v1 uintptr
	_, _ = p, v1
	p = _sqlite3DbMallocRawNN(tls, (*TParse)(unsafe.Pointer(pParse)).Fdb, uint64(72)+uint64((**(**TToken)(__ccgo_up(bp))).Fn)+uint64(1))
	if p != 0 {
		/* memset(p, 0, sizeof(Expr)); */
		(*TExpr)(unsafe.Pointer(p)).Fop = libc.Uint8FromInt32(op)
		(*TExpr)(unsafe.Pointer(p)).FaffExpr = 0
		(*TExpr)(unsafe.Pointer(p)).Fflags = uint32(EP_Leaf)
		/* p->iAgg = -1; // Not required */
		v1 = libc.UintptrFromInt32(0)
		(*TExpr)(unsafe.Pointer(p)).FpRight = v1
		(*TExpr)(unsafe.Pointer(p)).FpLeft = v1
		(*TExpr)(unsafe.Pointer(p)).FpAggInfo = uintptr(0)
		libc.Xmemset(tls, p+32, 0, uint64(8))
		libc.Xmemset(tls, p+64, 0, uint64(8))
		(*TExpr)(unsafe.Pointer(p)).Fop2 = uint8(0)
		(*TExpr)(unsafe.Pointer(p)).FiTable = 0
		(*TExpr)(unsafe.Pointer(p)).FiColumn = 0
		*(*uintptr)(unsafe.Pointer(p + 8)) = p + 1*72
		libc.Xmemcpy(tls, *(*uintptr)(unsafe.Pointer(p + 8)), (**(**TToken)(__ccgo_up(bp))).Fz, uint64((**(**TToken)(__ccgo_up(bp))).Fn))
		**(**int8)(__ccgo_up(*(*uintptr)(unsafe.Pointer(p + 8)) + uintptr((**(**TToken)(__ccgo_up(bp))).Fn))) = 0
		*(*int32)(unsafe.Pointer(p + 52)) = int32(int64((**(**TToken)(__ccgo_up(bp))).Fz) - int64((*TParse)(unsafe.Pointer(pParse)).FzTail))
		if libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(*(*uintptr)(unsafe.Pointer(p + 8)))))])&int32(0x80) != 0 {
			_sqlite3DequoteExpr(tls, p)
		}
		(*TExpr)(unsafe.Pointer(p)).FnHeight = int32(1)
		if libc.Int32FromUint8((*TParse)(unsafe.Pointer(pParse)).FeParseMode) >= int32(PARSE_MODE_RENAME) {
			return _sqlite3RenameTokenMap(tls, pParse, p, bp)
		}
	}
	return p
}

// C documentation
//
//	/*
//	** Set up a raw page so that it looks like a database page holding
//	** no entries.
//	*/
func _zeroPage(tls *libc.TLS, pPage uintptr, flags int32) {
	var data, pBt uintptr
	var first, hdr, v1 int32
	_, _, _, _, _ = data, first, hdr, pBt, v1
	data = (*TMemPage)(unsafe.Pointer(pPage)).FaData
	pBt = (*TMemPage)(unsafe.Pointer(pPage)).FpBt
	hdr = libc.Int32FromUint8((*TMemPage)(unsafe.Pointer(pPage)).FhdrOffset)
	if libc.Int32FromUint16((*TBtShared)(unsafe.Pointer(pBt)).FbtsFlags)&int32(BTS_FAST_SECURE) != 0 {
		libc.Xmemset(tls, data+uintptr(hdr), 0, uint64((*TBtShared)(unsafe.Pointer(pBt)).FusableSize-libc.Uint32FromInt32(hdr)))
	}
	**(**uint8)(__ccgo_up(data + uintptr(hdr))) = libc.Uint8FromInt8(int8(flags))
	if flags&int32(PTF_LEAF) == 0 {
		v1 = int32(12)
	} else {
		v1 = int32(8)
	}
	first = hdr + v1
	libc.Xmemset(tls, data+uintptr(hdr+int32(1)), 0, uint64(4))
	**(**uint8)(__ccgo_up(data + uintptr(hdr+int32(7)))) = uint8(0)
	**(**uint8)(__ccgo_up(data + uintptr(hdr+int32(5)))) = uint8((*TBtShared)(unsafe.Pointer(pBt)).FusableSize >> libc.Int32FromInt32(8))
	**(**uint8)(__ccgo_up(data + uintptr(hdr+int32(5)) + 1)) = uint8((*TBtShared)(unsafe.Pointer(pBt)).FusableSize)
	(*TMemPage)(unsafe.Pointer(pPage)).FnFree = libc.Int32FromUint16(uint16((*TBtShared)(unsafe.Pointer(pBt)).FusableSize - libc.Uint32FromInt32(first)))
	_decodeFlags(tls, pPage, flags)
	(*TMemPage)(unsafe.Pointer(pPage)).FcellOffset = libc.Uint16FromInt32(first)
	(*TMemPage)(unsafe.Pointer(pPage)).FaDataEnd = data + uintptr((*TBtShared)(unsafe.Pointer(pBt)).FpageSize)
	(*TMemPage)(unsafe.Pointer(pPage)).FaCellIdx = data + uintptr(first)
	(*TMemPage)(unsafe.Pointer(pPage)).FaDataOfst = data + uintptr((*TMemPage)(unsafe.Pointer(pPage)).FchildPtrSize)
	(*TMemPage)(unsafe.Pointer(pPage)).FnOverflow = uint8(0)
	(*TMemPage)(unsafe.Pointer(pPage)).FmaskPage = uint16((*TBtShared)(unsafe.Pointer(pBt)).FpageSize - libc.Uint32FromInt32(1))
	(*TMemPage)(unsafe.Pointer(pPage)).FnCell = uint16(0)
	(*TMemPage)(unsafe.Pointer(pPage)).FisInit = uint8(1)
}