Thread: pgsql: Preserve clustered index after rewrites with ALTER TABLE
Preserve clustered index after rewrites with ALTER TABLE A table rewritten by ALTER TABLE would lose tracking of an index usable for CLUSTER. This setting is tracked by pg_index.indisclustered and is controlled by ALTER TABLE, so some extra work was needed to restore it properly. Note that ALTER TABLE only marks the index that can be used for clustering, and does not do the actual operation. Author: Amit Langote, Justin Pryzby Reviewed-by: Ibrar Ahmed, Michael Paquier Discussion: https://postgr.es/m/20200202161718.GI13621@telsasoft.com Backpatch-through: 9.5 Branch ------ REL_11_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/41faafbd75a5c70fa94bf57e408e6b29c4425ceb Modified Files -------------- src/backend/commands/tablecmds.c | 46 +++++++++++++++++++++++++++++ src/backend/utils/cache/lsyscache.c | 23 +++++++++++++++ src/include/utils/lsyscache.h | 1 + src/test/regress/expected/alter_table.out | 48 +++++++++++++++++++++++++++++++ src/test/regress/sql/alter_table.sql | 25 ++++++++++++++++ 5 files changed, 143 insertions(+)