Обсуждение: pgsql: Limit Parallel Hash's bucket array to MaxAllocSize.

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pgsql: Limit Parallel Hash's bucket array to MaxAllocSize.

От
Thomas Munro
Дата:
Limit Parallel Hash's bucket array to MaxAllocSize.

Make sure that we don't exceed MaxAllocSize when increasing the number of
buckets.  Perhaps later we'll remove that limit and use DSA_ALLOC_HUGE, but
for now just prevent further increases like the non-parallel code.  This
change avoids the error from bug report #15225.

Author: Thomas Munro
Reviewed-By: Tom Lane
Reported-by: Frits Jalvingh
Discussion: https://postgr.es/m/152802081668.26724.16985037679312485972%40wrigleys.postgresql.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/86a2218eb00eb6f97898945967c5f9c95c72b4c6

Modified Files
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src/backend/executor/nodeHash.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)