Tom Lane aec4cf1c8c Add a function pg_stat_clear_snapshot() that discards any statistics snapshot ... already collected in the current transaction; this allows plpgsql functions to watch for stats updates even though they are confined to a single transaction. Use this instead of the previous kluge involving pg_stat_file() to wait for the stats collector to update in the stats regression test. Internally, decouple storage of stats snapshots from transaction boundaries; they'll now stick around until someone calls pgstat_clear_snapshot --- which xact.c still does at transaction end, to maintain the previous behavior. This makes the logic a lot cleaner, at the price of a couple dozen cycles per transaction exit.		2007-02-07 23:11:30 +00:00
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bench	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
examples	Wording cleanup for error messages. Also change can't -> cannot.	2007-02-01 19:10:30 +00:00
locale	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00
mb	Change the backend to reject strings containing invalidly-encoded multibyte	2006-05-21 20:05:21 +00:00
performance	Add CVS tag lines to files that were lacking them.	2006-03-11 04:38:42 +00:00
regress	Add a function pg_stat_clear_snapshot() that discards any statistics snapshot	2007-02-07 23:11:30 +00:00
thread	Wording cleanup for error messages. Also change can't -> cannot.	2007-02-01 19:10:30 +00:00
Makefile	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00