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-rw-r--r--contrib/postgres_fdw/sql/postgres_fdw.sql11
1 files changed, 8 insertions, 3 deletions
diff --git a/contrib/postgres_fdw/sql/postgres_fdw.sql b/contrib/postgres_fdw/sql/postgres_fdw.sql
index fcdd92e280b..11160f82455 100644
--- a/contrib/postgres_fdw/sql/postgres_fdw.sql
+++ b/contrib/postgres_fdw/sql/postgres_fdw.sql
@@ -316,19 +316,24 @@ COMMIT;
-- ===================================================================
-- test handling of collations
-- ===================================================================
-create table loct3 (f1 text collate "C", f2 text);
-create foreign table ft3 (f1 text collate "C", f2 text)
- server loopback options (table_name 'loct3');
+create table loct3 (f1 text collate "C" unique, f2 text, f3 varchar(10) unique);
+create foreign table ft3 (f1 text collate "C", f2 text, f3 varchar(10))
+ server loopback options (table_name 'loct3', use_remote_estimate 'true');
-- can be sent to remote
explain (verbose, costs off) select * from ft3 where f1 = 'foo';
explain (verbose, costs off) select * from ft3 where f1 COLLATE "C" = 'foo';
explain (verbose, costs off) select * from ft3 where f2 = 'foo';
+explain (verbose, costs off) select * from ft3 where f3 = 'foo';
+explain (verbose, costs off) select * from ft3 f, loct3 l
+ where f.f3 = l.f3 and l.f1 = 'foo';
-- can't be sent to remote
explain (verbose, costs off) select * from ft3 where f1 COLLATE "POSIX" = 'foo';
explain (verbose, costs off) select * from ft3 where f1 = 'foo' COLLATE "C";
explain (verbose, costs off) select * from ft3 where f2 COLLATE "C" = 'foo';
explain (verbose, costs off) select * from ft3 where f2 = 'foo' COLLATE "C";
+explain (verbose, costs off) select * from ft3 f, loct3 l
+ where f.f3 = l.f3 COLLATE "POSIX" and l.f1 = 'foo';
-- ===================================================================
-- test writable foreign table stuff