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Add broken distributed subplan test

pull/4196/head
Jelte Fennema 2020-09-29 14:25:16 +02:00 committed by Ahmet Gedemenli
parent 3357eea46b
commit 13ef8252e7
2 changed files with 75 additions and 20 deletions
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72
src/test/regress/expected/pg13.out
View File

@ -175,8 +175,9 @@ CREATE TABLE test_wal(a int, b int);
-- test WAL without ANALYZE, this should raise an error
EXPLAIN (WAL) INSERT INTO test_wal VALUES(1,11);
ERROR: EXPLAIN option WAL requires ANALYZE
-- test WAL working properly
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) INSERT INTO test_wal VALUES(1,11);
-- test WAL working properly for router queries
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
INSERT INTO test_wal VALUES(1,11);
QUERY PLAN
---------------------------------------------------------------------
Insert on test_wal (actual rows=0 loops=1)
@ -194,7 +195,8 @@ HINT: To remove the local data, run: SELECT truncate_local_data_after_distribut
(1 row)
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) INSERT INTO test_wal VALUES(2,22);
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
INSERT INTO test_wal VALUES(2,22);
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (Citus Adaptive) (actual rows=0 loops=1)
@ -207,24 +209,64 @@ EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMI
-> Result (actual rows=1 loops=1)
(8 rows)
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) WITH cte_1 AS (DELETE FROM test_wal WHERE a=2 RETURNING *) SELECT * FROM cte_1;
QUERY PLAN
-- Test WAL working for multi-shard query
SET citus.explain_all_tasks TO on;
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
DELETE FROM test_wal RETURNING *;
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (Citus Adaptive) (actual rows=1 loops=1)
Task Count: 1
Tuple data received from nodes: 3 bytes
Custom Scan (Citus Adaptive) (actual rows=2 loops=1)
Task Count: 2
Tuple data received from nodes: 6 bytes
Tasks Shown: All
-> Task
Tuple data received from node: 3 bytes
Node: host=localhost port=xxxxx dbname=regression
-> CTE Scan on cte_1 (actual rows=1 loops=1)
-> Delete on test_wal_65012 test_wal (actual rows=1 loops=1)
WAL: records=1 bytes=54
CTE cte_1
-> Delete on test_wal_65013 test_wal (actual rows=1 loops=1)
WAL: records=1 bytes=54
-> Seq Scan on test_wal_65013 test_wal (actual rows=1 loops=1)
Filter: (a = 2)
(14 rows)
-> Seq Scan on test_wal_65012 test_wal (actual rows=1 loops=1)
-> Task
Tuple data received from node: 3 bytes
Node: host=localhost port=xxxxx dbname=regression
-> Delete on test_wal_65013 test_wal (actual rows=1 loops=1)
WAL: records=1 bytes=54
-> Seq Scan on test_wal_65013 test_wal (actual rows=1 loops=1)
(16 rows)
-- insert items back for next query
INSERT INTO test_wal VALUES(1,11), (2,22);
-- make sure WAL works in distributed subplans
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
WITH cte_1 AS (DELETE FROM test_wal RETURNING *)
SELECT * FROM cte_1;
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (Citus Adaptive) (actual rows=2 loops=1)
-> Distributed Subplan XXX_1
Intermediate Data Size: 36 bytes
Result destination: Write locally
-> Custom Scan (Citus Adaptive) (actual rows=0 loops=1)
Task Count: 2
Tuple data received from nodes: 0 bytes
Tasks Shown: All
-> Task
Tuple data received from node: 0 bytes
Node: host=localhost port=xxxxx dbname=regression
-> Delete on test_wal_65012 test_wal (actual rows=0 loops=1)
-> Seq Scan on test_wal_65012 test_wal (actual rows=0 loops=1)
-> Task
Tuple data received from node: 0 bytes
Node: host=localhost port=xxxxx dbname=regression
-> Delete on test_wal_65013 test_wal (actual rows=0 loops=1)
-> Seq Scan on test_wal_65013 test_wal (actual rows=0 loops=1)
Task Count: 1
Tuple data received from nodes: 6 bytes
Tasks Shown: All
-> Task
Tuple data received from node: 6 bytes
Node: host=localhost port=xxxxx dbname=regression
-> Function Scan on read_intermediate_result intermediate_result (actual rows=2 loops=1)
(25 rows)
SET client_min_messages TO WARNING;
drop schema test_pg13 cascade;

23
src/test/regress/sql/pg13.sql
View File

@ -98,11 +98,24 @@ CREATE INDEX test_table_index ON test_table USING gist (b tsvector_ops(siglen =
CREATE TABLE test_wal(a int, b int);
-- test WAL without ANALYZE, this should raise an error
EXPLAIN (WAL) INSERT INTO test_wal VALUES(1,11);
-- test WAL working properly
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) INSERT INTO test_wal VALUES(1,11);
-- test WAL working properly for router queries
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
INSERT INTO test_wal VALUES(1,11);
SELECT create_distributed_table('test_wal', 'a');
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) INSERT INTO test_wal VALUES(2,22);
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE) WITH cte_1 AS (DELETE FROM test_wal WHERE a=2 RETURNING *) SELECT * FROM cte_1;
SET client_min_messages TO WARNING;
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
INSERT INTO test_wal VALUES(2,22);
-- Test WAL working for multi-shard query
SET citus.explain_all_tasks TO on;
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
DELETE FROM test_wal RETURNING *;
-- insert items back for next query
INSERT INTO test_wal VALUES(1,11), (2,22);
-- make sure WAL works in distributed subplans
EXPLAIN (ANALYZE TRUE, WAL TRUE, COSTS FALSE, SUMMARY FALSE, BUFFERS FALSE, TIMING FALSE)
WITH cte_1 AS (DELETE FROM test_wal RETURNING *)
SELECT * FROM cte_1;
SET client_min_messages TO WARNING;
drop schema test_pg13 cascade;