Changeset: 17030ce3c92a for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/17030ce3c92a
Modified Files:
sql/server/rel_unnest.c
Branch: Jan2022
Log Message:
push down project in unnest if its under a outerjoin and above semi/anti join.
diffs (12 lines):
diff --git a/sql/server/rel_unnest.c b/sql/server/rel_unnest.c
--- a/sql/server/rel_unnest.c
+++ b/sql/server/rel_unnest.c
@@ -841,7 +841,7 @@ push_up_project(mvc *sql, sql_rel *rel,
list *cexps = NULL;
sql_rel *l = r->l;
- if (l && (is_select(l->op) || l->op == op_join) &&
!rel_is_ref(l)) {
+ if (l && (is_select(l->op) || l->op == op_join ||
is_semi(l->op)) && !rel_is_ref(l)) {
for(n=r->exps->h; n; n=n->next) {
sql_exp *e = n->data;
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