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Use OP_Copy instead of OP_SCopy to move the results of a scalar subquery.

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FossilOrigin-Name: 435c272dcf6ed5f3acb564b8f959557145f117b869547b670258cf5a1908ab6b
This commit is contained in:
drh
2020-01-02 02:50:45 +00:00
parent 36e678bc39
commit 629b88c683
4 changed files with 15 additions and 10 deletions
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8
src/expr.c
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@@ -4492,7 +4492,13 @@ void sqlite3ExprCode(Parse *pParse, Expr *pExpr, int target){
inReg = sqlite3ExprCodeTarget(pParse, pExpr, target);
assert( pParse->pVdbe!=0 || pParse->db->mallocFailed );
if( inReg!=target && pParse->pVdbe ){
sqlite3VdbeAddOp2(pParse->pVdbe, OP_SCopy, inReg, target);
u8 op;
if( ExprHasProperty(pExpr,EP_Subquery) ){
op = OP_Copy;
}else{
op = OP_SCopy;
}
sqlite3VdbeAddOp2(pParse->pVdbe, op, inReg, target);
}
}