Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Appearance settings

Commit d41fda6

Browse filesBrowse files
committed
Fix race condition when sharing tuple descriptors.
Parallel query processes that called BlessTupleDesc() for identical tuple descriptors at the same moment could crash. There was code to handle that rare case, but it dereferenced a bogus DSA pointer. Repair. Back-patch to 11, where commit cc5f8136 added support for sharing tuple descriptors in parallel queries. Reported-by: Eric Thinnes <e.thinnes@gmx.de> Discussion: https://postgr.es/m/99aaa2eb-e194-bf07-c29a-1a76b4f2bcf9%40gmx.de
1 parent bb18bc2 commit d41fda6
Copy full SHA for d41fda6

File tree

Expand file treeCollapse file tree

1 file changed

+1
-1
lines changed
Filter options
Expand file treeCollapse file tree

1 file changed

+1
-1
lines changed

‎src/backend/utils/cache/typcache.c

Copy file name to clipboardExpand all lines: src/backend/utils/cache/typcache.c
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2707,7 +2707,7 @@ find_or_make_matching_shared_tupledesc(TupleDesc tupdesc)
27072707
Assert(record_table_entry->key.shared);
27082708
result = (TupleDesc)
27092709
dsa_get_address(CurrentSession->area,
2710-
record_table_entry->key.shared);
2710+
record_table_entry->key.u.shared_tupdesc);
27112711
Assert(result->tdrefcount == -1);
27122712

27132713
return result;

0 commit comments

Comments
0 (0)
Morty Proxy This is a proxified and sanitized view of the page, visit original site.