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This commit adds a new property called last_inactive_time for slots. It is set to 0 whenever a slot is made active/acquired and set to the current timestamp whenever the slot is inactive/released or restored from the disk. Note that we don't set the last_inactive_time for the slots currently being synced from the primary to the standby because such slots are typically inactive as decoding is not allowed on those. The 'last_inactive_time' will be useful on production servers to debug and analyze inactive replication slots. It will also help to know the lifetime of a replication slot - one can know how long a streaming standby, logical subscriber, or replication slot consumer is down. The 'last_inactive_time' will also be useful to implement inactive timeout-based replication slot invalidation in a future commit. Author: Bharath Rupireddy Reviewed-by: Bertrand Drouvot, Amit Kapila, Shveta Malik Discussion: https://www.postgresql.org/message-id/CALj2ACW4aUe-_uFQOjdWCEN-xXoLGhmvRFnL8SNw_TZ5nJe+aw@mail.gmail.com
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. authentication/ Tests for authentication (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling subscription/ Tests for logical replication