diff options
Diffstat (limited to 'src/test/regress/sql/select_parallel.sql')
| -rw-r--r-- | src/test/regress/sql/select_parallel.sql | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/regress/sql/select_parallel.sql b/src/test/regress/sql/select_parallel.sql index 22384b5ad85..9ba1328fd2e 100644 --- a/src/test/regress/sql/select_parallel.sql +++ b/src/test/regress/sql/select_parallel.sql @@ -543,3 +543,34 @@ reset debug_parallel_query; drop function set_and_report_role(); drop function set_role_and_error(int); drop role regress_parallel_worker; + +-- don't freeze in ParallelFinish while holding an LWLock +BEGIN; + +CREATE FUNCTION my_cmp (int4, int4) +RETURNS int LANGUAGE sql AS +$$ + SELECT + CASE WHEN $1 < $2 THEN -1 + WHEN $1 > $2 THEN 1 + ELSE 0 + END; +$$; + +CREATE TABLE parallel_hang (i int4); +INSERT INTO parallel_hang + (SELECT * FROM generate_series(1, 400) gs); + +CREATE OPERATOR CLASS int4_custom_ops FOR TYPE int4 USING btree AS + OPERATOR 1 < (int4, int4), OPERATOR 2 <= (int4, int4), + OPERATOR 3 = (int4, int4), OPERATOR 4 >= (int4, int4), + OPERATOR 5 > (int4, int4), FUNCTION 1 my_cmp(int4, int4); + +CREATE UNIQUE INDEX parallel_hang_idx + ON parallel_hang + USING btree (i int4_custom_ops); + +SET debug_parallel_query = on; +DELETE FROM parallel_hang WHERE 380 <= i AND i <= 420; + +ROLLBACK; |