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Add 'active_in' column to pg_replication_slots.

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Right now it is visible whether a replication slot is active in any
session, but not in which.  Adding the active_in column, containing the
pid of the backend having acquired the slot, makes it much easier to
associate pg_replication_slots entries with the corresponding
pg_stat_replication/pg_stat_activity row.

This should have been done from the start, but I (Andres) dropped the
ball there somehow.

Author: Craig Ringer, revised by me Discussion:
CAMsr+YFKgZca5_7_ouaMWxA5PneJC9LNViPzpDHusaPhU9pA7g@mail.gmail.com
This commit is contained in:
Andres Freund
2015-04-21 11:51:06 +02:00
parent 528c2e44ab
commit d811c037ce
9 changed files with 47 additions and 28 deletions
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3
src/test/regress/expected/rules.out
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@ -1396,10 +1396,11 @@ pg_replication_slots| SELECT l.slot_name,
l.datoid,
d.datname AS database,
l.active,
l.active_in,
l.xmin,
l.catalog_xmin,
l.restart_lsn
FROM (pg_get_replication_slots() l(slot_name, plugin, slot_type, datoid, active, xmin, catalog_xmin, restart_lsn)
FROM (pg_get_replication_slots() l(slot_name, plugin, slot_type, datoid, active, active_in, xmin, catalog_xmin, restart_lsn)
LEFT JOIN pg_database d ON ((l.datoid = d.oid)));
pg_roles| SELECT pg_authid.rolname,
pg_authid.rolsuper,