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Rewrite parallel ID test to avoid costly JITting 

By setting the CPU tuple cost so high, we were triggering JIT. Instead,
we should use parallel_tuple_cost.

See: rhaas.blogspot.com/2018/06/using-forceparallelmode-correctly.html
pull/2356/head
Jason Petersen 2018-08-30 17:23:15 -06:00 committed by Murat Tuncer
parent e62a1ab43d
commit d7f10b0896
2 changed files with 4 additions and 4 deletions
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4
src/test/regress/expected/multi_distributed_transaction_id.out
View File

@ -143,8 +143,8 @@ CREATE UNLOGGED TABLE parallel_id_test AS
SELECT s AS a, s AS b, s AS c, s AS d, s AS e, s AS f, s AS g, s AS h FROM generate_series(1,150000) s;
INSERT INTO parallel_id_test VALUES (1234567), (1234567), (1234568), (1234568);
ANALYSE parallel_id_test;
SET LOCAL max_parallel_workers_per_gather TO 8;
SET LOCAL cpu_tuple_cost TO 1000000;
SET LOCAL max_parallel_workers_per_gather TO 2;
SET LOCAL parallel_tuple_cost TO 0;
EXPLAIN (COSTS OFF)
SELECT a FROM parallel_id_test WHERE a = parallel_worker_transaction_id_test();
QUERY PLAN

4
src/test/regress/sql/multi_distributed_transaction_id.sql
View File

@ -96,8 +96,8 @@ SELECT s AS a, s AS b, s AS c, s AS d, s AS e, s AS f, s AS g, s AS h FROM gener
INSERT INTO parallel_id_test VALUES (1234567), (1234567), (1234568), (1234568);
ANALYSE parallel_id_test;
SET LOCAL max_parallel_workers_per_gather TO 8;
SET LOCAL cpu_tuple_cost TO 1000000;
SET LOCAL max_parallel_workers_per_gather TO 2;
SET LOCAL parallel_tuple_cost TO 0;
EXPLAIN (COSTS OFF)
SELECT a FROM parallel_id_test WHERE a = parallel_worker_transaction_id_test();