database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-09-03 15:22:11 +03:00
Code Activity

Avoid race in RelationBuildDesc() affecting CREATE INDEX CONCURRENTLY.

Browse Source 
CIC and REINDEX CONCURRENTLY assume backends see their catalog changes
no later than each backend's next transaction start.  That failed to
hold when a backend absorbed a relevant invalidation in the middle of
running RelationBuildDesc() on the CIC index.  Queries that use the
resulting index can silently fail to find rows.  Fix this for future
index builds by making RelationBuildDesc() loop until it finishes
without accepting a relevant invalidation.  It may be necessary to
reindex to recover from past occurrences; REINDEX CONCURRENTLY suffices.
Back-patch to 9.6 (all supported versions).

Noah Misch and Andrey Borodin, reviewed (in earlier versions) by Andres
Freund.

Discussion: https://postgr.es/m/20210730022548.GA1940096@gust.leadboat.com
This commit is contained in:
Noah Misch
2021-10-23 18:36:38 -07:00
parent affec9f6a2
commit dde966efb2
8 changed files with 368 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/tools/pgindent/typedefs.list
View File

@@ -1091,6 +1091,7 @@ ImportForeignSchemaStmt
ImportForeignSchemaType
ImportForeignSchema_function
ImportQual
InProgressEnt
IncludeWal
InclusionOpaque
IncrementVarSublevelsUp_context