database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-12 13:01:09 +03:00
Code Activity

Modify the OP_Once opcode so that it works correctly in trigger sub-programs. This is a candidate fix for [7bbfb7d442].

Browse Source 
FossilOrigin-Name: 557c69055a300b4082830b5f4803091dca1c3140
This commit is contained in:
dan
2011-12-09 13:24:16 +00:00
parent 254582f4c2
commit 1d8cb21fdb
12 changed files with 223 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/select.c
View File

@@ -3845,12 +3845,11 @@ int sqlite3Select(
topAddr = sqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn);
pItem->addrFillSub = topAddr+1;
VdbeNoopComment((v, "materialize %s", pItem->pTab->zName));
if( pItem->isCorrelated==0 && pParse->pTriggerTab==0 ){
if( pItem->isCorrelated==0 ){
/* If the subquery is no correlated and if we are not inside of
** a trigger, then we only need to compute the value of the subquery
** once. */
int regOnce = ++pParse->nMem;
onceAddr = sqlite3VdbeAddOp1(v, OP_Once, regOnce);
onceAddr = sqlite3CodeOnce(pParse);
}
sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
explainSetInteger(pItem->iSelectId, (u8)pParse->iNextSelectId);