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upstream 3.7.9

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This commit is contained in:
Stephen Lombardo
2011-12-26 14:52:17 -05:00
parent 12069ec913
commit ddb595fbc9
329 changed files with 14622 additions and 8785 deletions
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src/expr.c
+28 -21
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@@ -403,7 +403,8 @@ Expr *sqlite3ExprAlloc(
}else{
int c;
pNew->u.zToken = (char*)&pNew[1];
memcpy(pNew->u.zToken, pToken->z, pToken->n);
assert( pToken->z!=0 || pToken->n==0 );
if( pToken->n ) memcpy(pNew->u.zToken, pToken->z, pToken->n);
pNew->u.zToken[pToken->n] = 0;
if( dequote && nExtra>=3
&& ((c = pToken->z[0])=='\'' || c=='"' || c=='[' || c=='`') ){
@@ -901,7 +902,9 @@ SrcList *sqlite3SrcListDup(sqlite3 *db, SrcList *p, int flags){
pNewItem->zAlias = sqlite3DbStrDup(db, pOldItem->zAlias);
pNewItem->jointype = pOldItem->jointype;
pNewItem->iCursor = pOldItem->iCursor;
pNewItem->isPopulated = pOldItem->isPopulated;
pNewItem->addrFillSub = pOldItem->addrFillSub;
pNewItem->regReturn = pOldItem->regReturn;
pNewItem->isCorrelated = pOldItem->isCorrelated;
pNewItem->zIndex = sqlite3DbStrDup(db, pOldItem->zIndex);
pNewItem->notIndexed = pOldItem->notIndexed;
pNewItem->pIndex = pOldItem->pIndex;
@@ -1440,11 +1443,19 @@ int sqlite3FindInIndex(Parse *pParse, Expr *pX, int *prNotFound){
p = (ExprHasProperty(pX, EP_xIsSelect) ? pX->x.pSelect : 0);
if( ALWAYS(pParse->nErr==0) && isCandidateForInOpt(p) ){
sqlite3 *db = pParse->db; /* Database connection */
Expr *pExpr = p->pEList->a[0].pExpr; /* Expression <column> */
int iCol = pExpr->iColumn; /* Index of column <column> */
Vdbe *v = sqlite3GetVdbe(pParse); /* Virtual machine being coded */
Table *pTab = p->pSrc->a[0].pTab; /* Table <table>. */
Table *pTab; /* Table <table>. */
Expr *pExpr; /* Expression <column> */
int iCol; /* Index of column <column> */
int iDb; /* Database idx for pTab */
assert( p ); /* Because of isCandidateForInOpt(p) */
assert( p->pEList!=0 ); /* Because of isCandidateForInOpt(p) */
assert( p->pEList->a[0].pExpr!=0 ); /* Because of isCandidateForInOpt(p) */
assert( p->pSrc!=0 ); /* Because of isCandidateForInOpt(p) */
pTab = p->pSrc->a[0].pTab;
pExpr = p->pEList->a[0].pExpr;
iCol = pExpr->iColumn;
/* Code an OP_VerifyCookie and OP_TableLock for <table>. */
iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
@@ -1460,8 +1471,7 @@ int sqlite3FindInIndex(Parse *pParse, Expr *pX, int *prNotFound){
int iMem = ++pParse->nMem;
int iAddr;
iAddr = sqlite3VdbeAddOp1(v, OP_If, iMem);
sqlite3VdbeAddOp2(v, OP_Integer, 1, iMem);
iAddr = sqlite3VdbeAddOp1(v, OP_Once, iMem);
sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
eType = IN_INDEX_ROWID;
@@ -1492,8 +1502,7 @@ int sqlite3FindInIndex(Parse *pParse, Expr *pX, int *prNotFound){
char *pKey;
pKey = (char *)sqlite3IndexKeyinfo(pParse, pIdx);
iAddr = sqlite3VdbeAddOp1(v, OP_If, iMem);
sqlite3VdbeAddOp2(v, OP_Integer, 1, iMem);
iAddr = sqlite3VdbeAddOp1(v, OP_Once, iMem);
sqlite3VdbeAddOp4(v, OP_OpenRead, iTab, pIdx->tnum, iDb,
pKey,P4_KEYINFO_HANDOFF);
@@ -1574,7 +1583,7 @@ int sqlite3CodeSubselect(
int rMayHaveNull, /* Register that records whether NULLs exist in RHS */
int isRowid /* If true, LHS of IN operator is a rowid */
){
int testAddr = 0; /* One-time test address */
int testAddr = -1; /* One-time test address */
int rReg = 0; /* Register storing resulting */
Vdbe *v = sqlite3GetVdbe(pParse);
if( NEVER(v==0) ) return 0;
@@ -1592,15 +1601,13 @@ int sqlite3CodeSubselect(
*/
if( !ExprHasAnyProperty(pExpr, EP_VarSelect) && !pParse->pTriggerTab ){
int mem = ++pParse->nMem;
sqlite3VdbeAddOp1(v, OP_If, mem);
testAddr = sqlite3VdbeAddOp2(v, OP_Integer, 1, mem);
assert( testAddr>0 || pParse->db->mallocFailed );
testAddr = sqlite3VdbeAddOp1(v, OP_Once, mem);
}
#ifndef SQLITE_OMIT_EXPLAIN
if( pParse->explain==2 ){
char *zMsg = sqlite3MPrintf(
pParse->db, "EXECUTE %s%s SUBQUERY %d", testAddr?"":"CORRELATED ",
pParse->db, "EXECUTE %s%s SUBQUERY %d", testAddr>=0?"":"CORRELATED ",
pExpr->op==TK_IN?"LIST":"SCALAR", pParse->iNextSelectId
);
sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
@@ -1692,9 +1699,9 @@ int sqlite3CodeSubselect(
** this code only executes once. Because for a non-constant
** expression we need to rerun this code each time.
*/
if( testAddr && !sqlite3ExprIsConstant(pE2) ){
sqlite3VdbeChangeToNoop(v, testAddr-1, 2);
testAddr = 0;
if( testAddr>=0 && !sqlite3ExprIsConstant(pE2) ){
sqlite3VdbeChangeToNoop(v, testAddr);
testAddr = -1;
}
/* Evaluate the expression and insert it into the temp table */
@@ -1763,8 +1770,8 @@ int sqlite3CodeSubselect(
}
}
if( testAddr ){
sqlite3VdbeJumpHere(v, testAddr-1);
if( testAddr>=0 ){
sqlite3VdbeJumpHere(v, testAddr);
}
sqlite3ExprCachePop(pParse, 1);
@@ -2286,7 +2293,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
inReg = pCol->iMem;
break;
}else if( pAggInfo->useSortingIdx ){
sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdx,
sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab,
pCol->iSorterColumn, target);
break;
}
@@ -3455,7 +3462,7 @@ int sqlite3ExprCompare(Expr *pA, Expr *pB){
}
}else if( pA->op!=TK_COLUMN && pA->u.zToken ){
if( ExprHasProperty(pB, EP_IntValue) || NEVER(pB->u.zToken==0) ) return 2;
if( sqlite3StrICmp(pA->u.zToken,pB->u.zToken)!=0 ){
if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
return 2;
}
}