Changeset: a6d4686b3ea7 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/a6d4686b3ea7
Branch: default
Log Message:
merged
diffs (12 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
@@ -9864,7 +9864,7 @@ rel_optimizer(mvc *sql, sql_rel *rel, in
assert(level < 20);
#endif
/* Run rel_push_select_up only once at the end to avoid an infinite
optimization loop */
- if (opt == 2)
+ if (opt == 2 && gp.cnt[op_select] && (gp.cnt[op_join] ||
gp.cnt[op_left] || gp.cnt[op_right] || gp.cnt[op_full] || gp.cnt[op_semi] ||
gp.cnt[op_anti]))
rel = rel_visitor_bottomup(&v, rel, &rel_push_select_up);
if (gp.needs_setjoin_rewrite)
rel = rel_visitor_bottomup(&v, rel,
&rel_setjoins_2_joingroupby);
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