Changeset: bfc79c830a4b for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/bfc79c830a4b
Modified Files:
sql/server/rel_optimizer.c
Branch: Jul2021
Log Message:
Revert my previous change. exps_copy is needed and fixes tpcds q72
diffs (16 lines):
diff --git a/sql/server/rel_optimizer.c b/sql/server/rel_optimizer.c
--- a/sql/server/rel_optimizer.c
+++ b/sql/server/rel_optimizer.c
@@ -4921,10 +4921,8 @@ rel_push_semijoin_down_or_up(visitor *v,
return rel;
if (right && is_left(lop))
return rel;
- nsexps = rel->exps;
- rel->exps = NULL; /* prepare to delete relation */
- njexps = l->exps;
- l->exps = NULL;
+ nsexps = exps_copy(v->sql, rel->exps);
+ njexps = exps_copy(v->sql, l->exps);
if (left)
l = rel_crossproduct(v->sql->sa, rel_dup(ll),
rel_dup(r), op);
else
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