Hi, I am getting "ERROR: did not find all requested child rels in append_rel_list" when enable_partition_pruning is on for below test case.
CREATE TABLE test(c1 int, c2 int) PARTITION BY RANGE(c1); CREATE TABLE test_p1 PARTITION OF test FOR VALUES FROM (minvalue) TO (0); CREATE TABLE test_p2 PARTITION OF test FOR VALUES FROM (0) TO (maxvalue); select * from (select * from test a union all select * from test b) ss where (c1 >= c2); postgres=# set enable_partition_pruning to off; SET postgres=# select * from (select * from test a union all select * from test b) ss where (c1 >= c2); c1 | c2 ----+---- (0 rows) postgres=# postgres=# set enable_partition_pruning to on; SET postgres=# select * from (select * from test a union all select * from test b) ss where (c1 >= c2); ERROR: did not find all requested child rels in append_rel_list Thanks & Regards, Rajkumar Raghuwanshi QMG, EnterpriseDB Corporation