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upgrade bundled sqlite to sqlite 3.1.3

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This commit is contained in:
Wez Furlong 2005-02-27 05:20:19 +00:00
parent 58f61a16ee
commit ae5649598d
62 changed files with 11169 additions and 5661 deletions
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72
ext/pdo_sqlite/sqlite/src/update.c
View file

@ -48,12 +48,13 @@ void sqlite3Update(
int chngRecno; /* True if the record number is being changed */
Expr *pRecnoExpr = 0; /* Expression defining the new record number */
int openAll = 0; /* True if all indices need to be opened */
int isView; /* Trying to update a view */
AuthContext sContext; /* The authorization context */
NameContext sNC; /* The name-context to resolve expressions in */
int before_triggers; /* True if there are any BEFORE triggers */
int after_triggers; /* True if there are any AFTER triggers */
int row_triggers_exist = 0; /* True if any row triggers exist */
#ifndef SQLITE_OMIT_TRIGGER
int isView; /* Trying to update a view */
int triggers_exist = 0; /* True if any row triggers exist */
#endif
int newIdx = -1; /* index of trigger "new" temp table */
int oldIdx = -1; /* index of trigger "old" temp table */
@ -67,13 +68,23 @@ void sqlite3Update(
*/
pTab = sqlite3SrcListLookup(pParse, pTabList);
if( pTab==0 ) goto update_cleanup;
before_triggers = sqlite3TriggersExist(pParse, pTab->pTrigger,
TK_UPDATE, TK_BEFORE, TK_ROW, pChanges);
after_triggers = sqlite3TriggersExist(pParse, pTab->pTrigger,
TK_UPDATE, TK_AFTER, TK_ROW, pChanges);
row_triggers_exist = before_triggers || after_triggers;
/* Figure out if we have any triggers and if the table being
** updated is a view
*/
#ifndef SQLITE_OMIT_TRIGGER
triggers_exist = sqlite3TriggersExist(pParse, pTab, TK_UPDATE, pChanges);
isView = pTab->pSelect!=0;
if( sqlite3IsReadOnly(pParse, pTab, before_triggers) ){
#else
# define triggers_exist 0
# define isView 0
#endif
#ifdef SQLITE_OMIT_VIEW
# undef isView
# define isView 0
#endif
if( sqlite3IsReadOnly(pParse, pTab, triggers_exist) ){
goto update_cleanup;
}
if( isView ){
@ -88,7 +99,7 @@ void sqlite3Update(
/* If there are FOR EACH ROW triggers, allocate cursors for the
** special OLD and NEW tables
*/
if( row_triggers_exist ){
if( triggers_exist ){
newIdx = pParse->nTab++;
oldIdx = pParse->nTab++;
}
@ -103,6 +114,11 @@ void sqlite3Update(
pParse->nTab++;
}
/* Initialize the name-context */
memset(&sNC, 0, sizeof(sNC));
sNC.pParse = pParse;
sNC.pSrcList = pTabList;
/* Resolve the column names in all the expressions of the
** of the UPDATE statement. Also find the column index
** for each column to be updated in the pChanges array. For each
@ -111,8 +127,7 @@ void sqlite3Update(
*/
chngRecno = 0;
for(i=0; i<pChanges->nExpr; i++){
if( sqlite3ExprResolveAndCheck(pParse, pTabList, 0,
pChanges->a[i].pExpr, 0, 0) ){
if( sqlite3ExprResolveNames(&sNC, pChanges->a[i].pExpr) ){
goto update_cleanup;
}
for(j=0; j<pTab->nCol; j++){
@ -188,7 +203,7 @@ void sqlite3Update(
/* Resolve the column names in all the expressions in the
** WHERE clause.
*/
if( sqlite3ExprResolveAndCheck(pParse, pTabList, 0, pWhere, 0, 0) ){
if( sqlite3ExprResolveNames(&sNC, pWhere) ){
goto update_cleanup;
}
@ -202,7 +217,7 @@ void sqlite3Update(
*/
v = sqlite3GetVdbe(pParse);
if( v==0 ) goto update_cleanup;
sqlite3VdbeCountChanges(v);
if( pParse->nested==0 ) sqlite3VdbeCountChanges(v);
sqlite3BeginWriteOperation(pParse, 1, pTab->iDb);
/* If we are trying to update a view, construct that view into
@ -217,11 +232,12 @@ void sqlite3Update(
/* Begin the database scan
*/
pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, 1, 0);
pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0);
if( pWInfo==0 ) goto update_cleanup;
/* Remember the index of every item to be updated.
*/
sqlite3VdbeAddOp(v, OP_Recno, iCur, 0);
sqlite3VdbeAddOp(v, OP_ListWrite, 0, 0);
/* End the database scan loop.
@ -234,7 +250,7 @@ void sqlite3Update(
sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
}
if( row_triggers_exist ){
if( triggers_exist ){
/* Create pseudo-tables for NEW and OLD
*/
sqlite3VdbeAddOp(v, OP_OpenPseudo, oldIdx, 0);
@ -266,11 +282,11 @@ void sqlite3Update(
/* Generate the NEW table
*/
if( chngRecno ){
sqlite3ExprCode(pParse, pRecnoExpr);
sqlite3ExprCodeAndCache(pParse, pRecnoExpr);
}else{
sqlite3VdbeAddOp(v, OP_Recno, iCur, 0);
}
for(i=0; i<pTab->nCol; i++){ /* TODO: Factor out this loop as common code */
for(i=0; i<pTab->nCol; i++){
if( i==pTab->iPKey ){
sqlite3VdbeAddOp(v, OP_String8, 0, 0);
continue;
@ -279,7 +295,7 @@ void sqlite3Update(
if( j<0 ){
sqlite3VdbeAddOp(v, OP_Column, iCur, i);
}else{
sqlite3ExprCode(pParse, pChanges->a[j].pExpr);
sqlite3ExprCodeAndCache(pParse, pChanges->a[j].pExpr);
}
}
sqlite3VdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
@ -294,7 +310,7 @@ void sqlite3Update(
/* Fire the BEFORE and INSTEAD OF triggers
*/
if( sqlite3CodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, pTab,
if( sqlite3CodeRowTrigger(pParse, TK_UPDATE, pChanges, TRIGGER_BEFORE, pTab,
newIdx, oldIdx, onError, addr) ){
goto update_cleanup;
}
@ -336,7 +352,7 @@ void sqlite3Update(
** Also, the old data is needed to delete the old index entires.
** So make the cursor point at the old record.
*/
if( !row_triggers_exist ){
if( !triggers_exist ){
sqlite3VdbeAddOp(v, OP_ListRewind, 0, 0);
addr = sqlite3VdbeAddOp(v, OP_ListRead, 0, 0);
sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
@ -396,7 +412,7 @@ void sqlite3Update(
/* If there are triggers, close all the cursors after each iteration
** through the loop. The fire the after triggers.
*/
if( row_triggers_exist ){
if( triggers_exist ){
if( !isView ){
for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
if( openAll || aIdxUsed[i] )
@ -404,7 +420,7 @@ void sqlite3Update(
}
sqlite3VdbeAddOp(v, OP_Close, iCur, 0);
}
if( sqlite3CodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, pTab,
if( sqlite3CodeRowTrigger(pParse, TK_UPDATE, pChanges, TRIGGER_AFTER, pTab,
newIdx, oldIdx, onError, addr) ){
goto update_cleanup;
}
@ -418,7 +434,7 @@ void sqlite3Update(
sqlite3VdbeAddOp(v, OP_ListReset, 0, 0);
/* Close all tables if there were no FOR EACH ROW triggers */
if( !row_triggers_exist ){
if( !triggers_exist ){
for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
if( openAll || aIdxUsed[i] ){
sqlite3VdbeAddOp(v, OP_Close, iCur+i+1, 0);
@ -431,9 +447,11 @@ void sqlite3Update(
}
/*
** Return the number of rows that were changed.
** Return the number of rows that were changed. If this routine is
** generating code because of a call to sqlite3NestedParse(), do not
** invoke the callback function.
*/
if( db->flags & SQLITE_CountRows && !pParse->trigStack ){
if( db->flags & SQLITE_CountRows && !pParse->trigStack && pParse->nested==0 ){
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
sqlite3VdbeSetNumCols(v, 1);
sqlite3VdbeSetColName(v, 0, "rows updated", P3_STATIC);