Re: pgsql: Fix "base" snapshot handling in logical decoding

Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> Fix "base" snapshot handling in logical decoding

According to buildfarm member friarbird, and as confirmed here,
the contrib/test_decoding/specs/oldest_xmin.spec test added by this
commit fails under CLOBBER_CACHE_ALWAYS.

friarbird's error output doesn't seem to be getting captured by the
buildfarm script, but what I see is

***************
*** 16,21 ****
--- 16,22 ----

step s1_commit: COMMIT;
step s0_vacuum: VACUUM FULL;
+ ERROR: canceling statement due to user request
step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_s
lot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
data

which looks like it might just be a timeout problem.

regards, tom lane