Horton

Preserve replica identity index across ALTER TABLE rewrite

Peter Eisentraut <peter@eisentraut.org>

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Commit: c15d35041206dbe2fd8f57a18c6227a2312ddf0d
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2020-03-13T12:21:30Z
Releases: 9.5.22 
Preserve replica identity index across ALTER TABLE rewrite

If an index was explicitly set as replica identity index, this setting
was lost when a table was rewritten by ALTER TABLE.  Because this
setting is part of pg_index but actually controlled by ALTER
TABLE (not part of CREATE INDEX, say), we have to do some extra work
to restore it.

Based-on-patch-by: Quan Zongliang <quanzongliang@gmail.com>
Reviewed-by: Euler Taveira <euler.taveira@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/c70fcab2-4866-0d9f-1d01-e75e189db342@gmail.com

Files

PathChange+/−
src/backend/commands/tablecmds.c modified +42 −0
src/backend/utils/cache/lsyscache.c modified +25 −0
src/include/utils/lsyscache.h modified +1 −0
src/test/regress/expected/replica_identity.out modified +46 −0
src/test/regress/sql/replica_identity.sql modified +21 −0

Discussion