On Tue, 2024-07-16 at 09:01 +0000, Zwettler Markus (OIZ) wrote: > > On Tue, 2024-07-16 at 08:04 +0000, Zwettler Markus (OIZ) wrote: > > > I have a standby database running 3 hours behind the primary (recovery_min_apply_delay = '3h'). > > > > > > In case of a logical error on the primary I want to promote the standby database > > > which still has correct data. > > > > > > The standby should not apply any more WAL in that case. > > > > > > It seems that this can only be done manually: > > > > > > 1. pg_ctl stop > > > 2. rm -rf standby.signal > > > 3. set primary_conninfo = '' > > > 4. pg_ctl start > > > > > > Is there no single command on this? > > > > Perhaps this could be the single command: > > > > psql -c "ALTER SYSTEM SET recovery_target_time = '2024-07-16 12:00:00'" -c > > "SELECT pg_reload_conf()" > > setting recovery_target_time + reload would be step 0 in that case, before stop/start. correct? No, that would be the only step. A restart is not necessary, and PostgreSQL will automatically promote the standby when the target time is reached (if you set "recovery_target_action" to "promote"). Yours, Laurenz Albe
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