| From: | Robert Haas <rhaas(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Fix possible crash with Parallel Bitmap Heap Scan. |
| Date: | 2017-10-13 19:09:12 |
| Message-ID: | E1e35Ka-0001do-8e@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Fix possible crash with Parallel Bitmap Heap Scan.
If a Parallel Bitmap Heap scan's chain of leftmost descendents
includes a BitmapOr whose first child is a BitmapAnd, the prior coding
would mistakenly create a non-shared TIDBitmap and then try to perform
shared iteration.
Report by Tomas Vondra. Patch by Dilip Kumar.
Discussion: http://postgr.es/m/50e89684-8ad9-dead-8767-c9545bafd3b6@2ndquadrant.com
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/6393613b6a1e0feae3d22af608397b252cee5b58
Modified Files
--------------
src/backend/optimizer/plan/createplan.c | 4 ++++
1 file changed, 4 insertions(+)
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