Fix BRIN summarization concurrent with extension If a process is extending a table concurrently with some BRIN summarization process, it is possible for the latter to miss pages added by the former because the number of pages is computed ahead of time.
Fix by determining a fresh relation size after inserting the placeholder tuple: any process that further extends the table concurrently will update the placeholder tuple, while previous pages will be processed by the heap scan. Reported-by: Tomas Vondra Reviewed-by: Tom Lane Author: Álvaro Herrera Discussion: https://postgr.es/m/083d996a-4a8a-0e13-800a-851dd09ad...@2ndquadrant.com Backpatch-to: 9.5 Branch ------ REL9_6_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/bd8e2b3cf4cfe5f26ed314af662ef988b4cfad4b Modified Files -------------- src/backend/access/brin/brin.c | 57 ++++++++++++++++++++++++++++++++++++------ 1 file changed, 49 insertions(+), 8 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
