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Commit2b4d535

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michaelpqpull[bot]
authored andcommitted
Fix instability in regression test for Parallel Hash Full Join
As reported by buildfarm member conchuela, one of the regression testsadded by558c9d7 is having some ordering issues. This commit adds anORDER BY clause to make the output more stable for the problematicquery.Fix suggested by Tom Lane. The plan of the query updated still uses aparallel hash full join.Author: Melanie PlagemanDiscussion:https://postgr.es/m/623596.1684541098@sss.pgh.pa.us
1 parentbbcfa37 commit2b4d535

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‎src/test/regress/expected/join_hash.out

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -971,7 +971,8 @@ INSERT INTO hjtest_matchbits_t2 VALUES (2);
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-- Update should create a HOT tuple. If this status bit isn't cleared, we won't
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-- correctly emit the NULL-extended unmatching tuple in full hash join.
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UPDATE hjtest_matchbits_t2 set id = 2;
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SELECT * FROM hjtest_matchbits_t1 t1 FULL JOIN hjtest_matchbits_t2 t2 ON t1.id = t2.id;
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SELECT * FROM hjtest_matchbits_t1 t1 FULL JOIN hjtest_matchbits_t2 t2 ON t1.id = t2.id
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ORDER BY t1.id;
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id | id
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----+----
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1 |

‎src/test/regress/sql/join_hash.sql

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -523,7 +523,8 @@ INSERT INTO hjtest_matchbits_t2 VALUES (2);
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-- Update should create a HOT tuple. If this status bit isn't cleared, we won't
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-- correctly emit the NULL-extended unmatching tuple in full hash join.
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UPDATE hjtest_matchbits_t2set id=2;
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SELECT*FROM hjtest_matchbits_t1 t1 FULLJOIN hjtest_matchbits_t2 t2ONt1.id=t2.id;
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SELECT*FROM hjtest_matchbits_t1 t1 FULLJOIN hjtest_matchbits_t2 t2ONt1.id=t2.id
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ORDER BYt1.id;
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-- Test serial full hash join.
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-- Resetting parallel_setup_cost should force a serial plan.
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-- Just to be safe, however, set enable_parallel_hash to off, as parallel full

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