Add value materialization test (#5368)

src/test/regress/citus_tests/config.py

@@ -290,6 +290,7 @@ class CitusUnusualQuerySettingsConfig(CitusMXBaseClusterConfig):
             "citus.enable_single_hash_repartition_joins": True,
             "citus.recover_2pc_interval": "1s",
             "citus.remote_task_check_interval": "1ms",
+            "citus.values_materialization_threshold" : "0"
         }
 
 

src/test/regress/expected/distributed_planning.out

@@ -452,6 +452,18 @@ SELECT count(*) from local;
 (1 row)
 
 ROLLBACK;
+-- values materialization test
+WITH cte_1 (num,letter) AS (VALUES (1, 'one'), (2, 'two'), (3, 'three'))
+SELECT
+	count(*)
+FROM
+	test
+WHERE x IN (SELECT num FROM cte_1);
+ count
+---------------------------------------------------------------------
+     3
+(1 row)
+
 -- query fails on the shards should be handled
 -- nicely
 \set VERBOSITY terse

src/test/regress/sql/distributed_planning.sql

@@ -237,6 +237,14 @@ INSERT INTO local(c, d) SELECT a, b FROM ref;
 SELECT count(*) from local;
 ROLLBACK;
 
+-- values materialization test
+WITH cte_1 (num,letter) AS (VALUES (1, 'one'), (2, 'two'), (3, 'three'))
+SELECT
+	count(*)
+FROM
+	test
+WHERE x IN (SELECT num FROM cte_1);
+
 -- query fails on the shards should be handled
 -- nicely
 \set VERBOSITY terse