commit 53932ce8fa8d095cd61b44aa1244af78a955ccf3
author drh <drh@noemail.net> Fri Aug 29 12:29:39 2014 +0000
committer drh <drh@noemail.net> Fri Aug 29 12:29:39 2014 +0000
tree fa4c04fc4c3f115a3ad6e4a74e85e017728b9a9c
parent ae914d783a2db649b1b4505cf7314e5dafa7a199

Avoid an unnecessary OP_Move operation for expression subqueries.

FossilOrigin-Name: 462f42af52f146fd328ddcbbe78c8444ef7bd2c3

src/expr.c

diff --git a/src/expr.c b/src/expr.c
index fabdae2..1a2465f 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1912,6 +1912,7 @@
       sqlite3SelectDestInit(&dest, 0, ++pParse->nMem);
       if( pExpr->op==TK_SELECT ){
         dest.eDest = SRT_Mem;
+        dest.iSdst = dest.iSDParm;
         sqlite3VdbeAddOp2(v, OP_Null, 0, dest.iSDParm);
         VdbeComment((v, "Init subquery result"));
       }else{