Thread: pgsql: Accommodate very large dshash tables.

pgsql: Accommodate very large dshash tables.

From

Nathan Bossart

Date:

18 December, 03:27:25

Accommodate very large dshash tables.

If a dshash table grows very large (e.g., the dshash table for
cumulative statistics when there are millions of tables), resizing
it may fail with an error like:

        ERROR: invalid DSA memory alloc request size 1073741824

To fix, permit dshash resizing to allocate more than 1 GB by
providing the DSA_ALLOC_HUGE flag.

Reported-by: Andreas Scherbaum
Author: Matthias van de Meent
Reviewed-by: Cédric Villemain, Michael Paquier, Andres Freund
Discussion: https://postgr.es/m/80a12d59-0d5e-4c54-866c-e69cd6536471%40pgug.de
Backpatch-through: 13

Branch
------
REL_17_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/18452b70acee293d709f475c4551b3b242d4abd1

Modified Files
--------------
src/backend/lib/dshash.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)