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Update limit_intermediate_size test 

It seems that when we use adaptive executor instead of task tracker, we
exceed the intermediate result size less in the test. Therefore updated
the tests accordingly.
pull/3850/head
Sait Talha Nisanci 2020-05-19 13:08:00 +03:00
parent c603fd5d7a
commit 7802fc356c
2 changed files with 28 additions and 13 deletions
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37
src/test/regress/expected/limit_intermediate_size.out
View File

@ -38,9 +38,20 @@ FROM
ORDER BY
1,2
LIMIT 10;
ERROR: the intermediate result size exceeds citus.max_intermediate_result_size (currently 9 kB)
DETAIL: Citus restricts the size of intermediate results of complex subqueries and CTEs to avoid accidentally pulling large result sets into once place.
HINT: To run the current query, set citus.max_intermediate_result_size to a higher value or -1 to disable.
user_id | value_2
---------------------------------------------------------------------
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
1 | 0
(10 rows)
-- router queries should be able to get limitted too
SET citus.max_intermediate_result_size TO 2;
-- this should pass, since we fetch small portions in each subplan
@ -105,10 +116,12 @@ WITH cte AS (
SELECT * FROM cte2, cte3 WHERE cte2.user_id = cte3.user_id AND cte2.user_id = 1
AND EXISTS (select * from cte2, cte3)
)
SELECT * FROM cte WHERE EXISTS (select * from cte);
ERROR: the intermediate result size exceeds citus.max_intermediate_result_size (currently 4 kB)
DETAIL: Citus restricts the size of intermediate results of complex subqueries and CTEs to avoid accidentally pulling large result sets into once place.
HINT: To run the current query, set citus.max_intermediate_result_size to a higher value or -1 to disable.
SELECT count(*) FROM cte WHERE EXISTS (select * from cte);
count
---------------------------------------------------------------------
105
(1 row)
SET citus.max_intermediate_result_size TO 3;
-- this should fail since the cte-subplan exceeds the limit even if the
-- cte2 and cte3 does not
@ -121,10 +134,12 @@ WITH cte AS (
)
SELECT * FROM cte2, cte3 WHERE cte2.value_1 IN (SELECT value_2 FROM cte3)
)
SELECT * FROM cte;
ERROR: the intermediate result size exceeds citus.max_intermediate_result_size (currently 3 kB)
DETAIL: Citus restricts the size of intermediate results of complex subqueries and CTEs to avoid accidentally pulling large result sets into once place.
HINT: To run the current query, set citus.max_intermediate_result_size to a higher value or -1 to disable.
SELECT count(*) FROM cte;
count
---------------------------------------------------------------------
1824
(1 row)
-- this will fail in real_time_executor
SET citus.max_intermediate_result_size TO 2;
WITH cte AS (

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

@ -100,7 +100,7 @@ WITH cte AS (
SELECT * FROM cte2, cte3 WHERE cte2.user_id = cte3.user_id AND cte2.user_id = 1
AND EXISTS (select * from cte2, cte3)
)
SELECT * FROM cte WHERE EXISTS (select * from cte);
SELECT count(*) FROM cte WHERE EXISTS (select * from cte);
SET citus.max_intermediate_result_size TO 3;
@ -115,7 +115,7 @@ WITH cte AS (
)
SELECT * FROM cte2, cte3 WHERE cte2.value_1 IN (SELECT value_2 FROM cte3)
)
SELECT * FROM cte;
SELECT count(*) FROM cte;
-- this will fail in real_time_executor