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Simplify FK-to-partitioned regression test query 

Avoid a join between relations having the FK to detect FK violation.
The planner might optimize this considering the PK must exist on the
referenced side at some point, effectively masking a bug this test
tries to detect.

Tom Lane and Jehan-Guillaume de Rorthais
Discussion: https://postgr.es/m/467.1581270529@sss.pgh.pa.us
This commit is contained in:
Alvaro Herrera 2020-02-20 14:14:20 -03:00
parent 53b01acd46
commit b2304a7174
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GPG Key ID: 1C20ACB9D5C564AE
2 changed files with 10 additions and 10 deletions
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14
src/test/regress/expected/foreign_key.out
View File

@ -2456,12 +2456,14 @@ CREATE SCHEMA fkpart9
INSERT INTO fkpart9.pk VALUES (35);
INSERT INTO fkpart9.fk VALUES (35);
DELETE FROM fkpart9.pk WHERE a=35;
SELECT fk.fk_a, pk.a
FROM fkpart9.fk
LEFT JOIN fkpart9.pk ON fk.fk_a = pk.a
WHERE fk.fk_a=35;
fk_a | a
------+---
SELECT * FROM fkpart9.pk;
a
---
(0 rows)
SELECT * FROM fkpart9.fk;
fk_a
------
(0 rows)
DROP SCHEMA fkpart9 CASCADE;

6
src/test/regress/sql/foreign_key.sql
View File

@ -1735,8 +1735,6 @@ CREATE SCHEMA fkpart9
INSERT INTO fkpart9.pk VALUES (35);
INSERT INTO fkpart9.fk VALUES (35);
DELETE FROM fkpart9.pk WHERE a=35;
SELECT fk.fk_a, pk.a
FROM fkpart9.fk
LEFT JOIN fkpart9.pk ON fk.fk_a = pk.a
WHERE fk.fk_a=35;
SELECT * FROM fkpart9.pk;
SELECT * FROM fkpart9.fk;
DROP SCHEMA fkpart9 CASCADE;