On Monday, June 24, 2019, PG Bug reporting form <
noreply@postgresql.org> wrote:
The following bug has been logged on the website:
Bug reference: 15871
Logged by: Tom Dunstan
Email address: pgsql@tomd.cc
PostgreSQL version: 11.4
Operating system: Linux x86_64 (Alpine 3.9)
Description:
test=# ALTER TABLE FOO ALTER ts1 TYPE TIMESTAMP WITH TIME ZONE, ALTER ts2
TYPE TIMESTAMP WITH TIME ZONE;
ERROR: 42P07: relation "foo_ts1_idx" already exists
LOCATION: index_create, index.c:877
Necessary condition seems to be:
- Multiple columns altered in the same statement
- Both altered columns have an index
Seems to be the same behavior as BUG #1586 whose fix just got applied today and will appear in the next point release.
David J.