Changeset: 7ae5c92bbcd7 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=7ae5c92bbcd7
Modified Files:
sql/server/rel_optimizer.c
sql/test/miscellaneous/Tests/groupby_error.sql
sql/test/miscellaneous/Tests/groupby_error.stable.out
Branch: Oct2020
Log Message:
Reverting my changes. The distinct property cannot be removed on constants
diffs (45 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
@@ -5983,15 +5983,6 @@ rel_groupby_distinct(visitor *v, sql_rel
}
}
- /*if the input expressions are atoms, drop distinct property */
- if (is_groupby(rel->op) && !list_empty(rel->exps)) {
- for (n=rel->exps->h; n ; n = n->next) {
- sql_exp *e = n->data;
- if (e->type == e_aggr && need_distinct(e) && (!e->l ||
exps_are_atoms(e->l)))
- set_nodistinct(e);
- }
- }
-
if (is_groupby(rel->op)) {
sql_rel *l = rel->l;
if (!l || is_groupby(l->op))
diff --git a/sql/test/miscellaneous/Tests/groupby_error.sql
b/sql/test/miscellaneous/Tests/groupby_error.sql
--- a/sql/test/miscellaneous/Tests/groupby_error.sql
+++ b/sql/test/miscellaneous/Tests/groupby_error.sql
@@ -193,7 +193,7 @@ SELECT CAST(COUNT ( DISTINCT + CAST ( NU
-- 93
-- 93
select group_concat(distinct 'a') from tab0;
- -- a,a,a
+ -- a
INSERT INTO "tab0" VALUES (83, 0, 38), (26, 0, 79), (43, 81, 24);
select group_concat(distinct col1, col2) from tab0 group by col0;
-- 0
diff --git a/sql/test/miscellaneous/Tests/groupby_error.stable.out
b/sql/test/miscellaneous/Tests/groupby_error.stable.out
--- a/sql/test/miscellaneous/Tests/groupby_error.stable.out
+++ b/sql/test/miscellaneous/Tests/groupby_error.stable.out
@@ -501,8 +501,8 @@ project (
% .%1 # table_name
% %1 # name
% clob # type
-% 5 # length
-[ "a,a,a" ]
+% 1 # length
+[ "a" ]
#INSERT INTO "tab0" VALUES (83, 0, 38), (26, 0, 79), (43, 81, 24);
[ 3 ]
#ROLLBACK;
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