| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Add missed bms_copy() in perform_pruning_combine_step |
| Date: | 2018-04-09 13:59:03 |
| Message-ID: | E1f5XK3-0004Em-QZ@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Add missed bms_copy() in perform_pruning_combine_step
We were initializing a BMS to merely reference an existing one, which
would cause a double-free (and a crash) when the recursive algorithm
tried to intersect it with an empty one. Fix it by creating a copy at
initialization time.
Reported-by: sqlsmith (by way of Andreas Seltenreich)
Author: Amit Langote
Discussion: https://postgr.es/m/87in923lyw.fsf@ansel.ydns.eu
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/7ba6ee815dc90d4fab7226d343bf72aa28c9aa5c
Modified Files
--------------
src/backend/partitioning/partprune.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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