while testing latest v3 patches, I am getting a server crash if I reset partition_wise_agg_cost_factor, please take a look.
CREATE TABLE lp (a TEXT, b FLOAT, c INT) PARTITION BY LIST(c); CREATE TABLE lp1 PARTITION OF lp FOR VALUES IN (10,20); CREATE TABLE lp2 PARTITION OF lp FOR VALUES IN (30,40);
INSERT INTO lp VALUES ('a1',800, 20); INSERT INTO lp VALUES ('a2',1250,30); INSERT INTO lp VALUES ('a3',2975,20); INSERT INTO lp VALUES ('a3',2850,30);
postgres=# SET enable_partition_wise_agg TO true; SET postgres=# SET partition_wise_agg_cost_factor TO 0.5; SET postgres=# postgres=# SELECT MAX(b), AVG(b) FROM lp GROUP BY a HAVING a = 'a3' ORDER BY 1,2; max | avg ------+-------- 2975 | 2912.5 (1 row)
postgres=# RESET partition_wise_agg_cost_factor; RESET postgres=# postgres=# SELECT MAX(b), AVG(b) FROM lp GROUP BY a HAVING a = 'a3' ORDER BY 1,2; server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. The connection to the server was lost. Attempting reset: Failed. !>
Oops. Will fix this.
I have added these tests in testcase, but testcase is working as expected.
However running those steps on psql reproduces the crash (not consistent though).
