| From: | Thomas Munro <tmunro(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Fix NULL handling in multi-batch Parallel Hash Left Join. |
| Date: | 2018-11-02 22:08:19 |
| Message-ID: | E1gIhc3-0006kA-Qv@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Fix NULL handling in multi-batch Parallel Hash Left Join.
NULL keys in left joins were skipped when building batch files.
Repair, by making the keep_nulls argument to ExecHashGetHashValue()
depend on whether this is a left outer join, as we do in other
paths.
Bug #15475. Thinko in 1804284042e. Back-patch to 11.
Reported-by: Paul Schaap
Diagnosed-by: Andrew Gierth
Dicussion: https://postgr.es/m/15475-11a7a783fed72a36%40postgresql.org
Branch
------
REL_11_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/fd6449aa38759cc35c32c1d5bf87c516ba6385c8
Modified Files
--------------
src/backend/executor/nodeHashjoin.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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