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Use OP_Copy instead of OP_SCopy when moving results out of a subquery,

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to prevent the subquery results from changing out from under the outer
query.  Fix for ticket [1e64dd782a126f48d78].

FossilOrigin-Name: d5513dfa23baa0b0a095aaf17d19aacd30dcef61
This commit is contained in:
drh
2014-04-03 16:29:31 +00:00
parent 831116d164
commit c438df1be0
4 changed files with 23 additions and 9 deletions
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2
src/where.c
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@@ -5924,7 +5924,7 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){
for(; k<last; k++, pOp++){
if( pOp->p1!=pLevel->iTabCur ) continue;
if( pOp->opcode==OP_Column ){
pOp->opcode = OP_SCopy;
pOp->opcode = OP_Copy;
pOp->p1 = pOp->p2 + pTabItem->regResult;
pOp->p2 = pOp->p3;
pOp->p3 = 0;