| From: | Alexander Korotkov <akorotkov(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Fix division by zero in _bt_vacuum_needs_cleanup() |
| Date: | 2019-04-15 18:57:03 |
| Message-ID: | E1hG6mt-0006X3-Pg@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Fix division by zero in _bt_vacuum_needs_cleanup()
Checks inside _bt_vacuum_needs_cleanup() allow division by zero to happen when
metad->btm_last_cleanup_num_heap_tuples == 0. This commit adjusts the
expression so that no division by zero might happen.
Reported-by: Piotr Stefaniak
Discussion: https://postgr.es/m/DB8PR03MB5931C41F7787A95313F08322F22A0%40DB8PR03MB5931.eurprd03.prod.outlook.com
Reviewed-by: Masahiko Sawada
Backpatch-through: 11
Branch
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REL_11_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/0d68ad3fc28377d36a3e1dd8b0e2ff47e693e552
Modified Files
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src/backend/access/nbtree/nbtree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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