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_5_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/cf0612aa2c8fdc54bb98a13ef839f43cef5eadc5 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
