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Add MODE option to CHECKPOINT command.

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This option may be set to FAST (the default) to request the
checkpoint be completed as fast as possible, or SPREAD to request
the checkpoint be spread over a longer interval (based on the
checkpoint-related configuration parameters).  Note that the server
may consolidate the options for concurrently requested checkpoints.
For example, if one session requests a "fast" checkpoint and
another requests a "spread" checkpoint, the server may perform one
"fast" checkpoint.

Author: Christoph Berg <myon@debian.org>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Fujii Masao <masao.fujii@oss.nttdata.com>
Reviewed-by: Laurenz Albe <laurenz.albe@cybertec.at>
Reviewed-by: Dilip Kumar <dilipbalaut@gmail.com>
Discussion: https://postgr.es/m/aDnaKTEf-0dLiEfz%40msg.df7cb.de
This commit is contained in:
Nathan Bossart
2025-07-11 11:51:25 -05:00
parent a4f126516e
commit 2f698d7f4b
5 changed files with 79 additions and 12 deletions
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13
src/bin/psql/tab-complete.in.c
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@@ -3156,6 +3156,19 @@ match_previous_words(int pattern_id,
/* CHECKPOINT */
else if (Matches("CHECKPOINT"))
COMPLETE_WITH("(");
else if (HeadMatches("CHECKPOINT", "(*") &&
!HeadMatches("CHECKPOINT", "(*)"))
{
/*
* This fires if we're in an unfinished parenthesized option list.
* get_previous_words treats a completed parenthesized option list as
* one word, so the above test is correct.
*/
if (ends_with(prev_wd, '(') || ends_with(prev_wd, ','))
COMPLETE_WITH("MODE");
else if (TailMatches("MODE"))
COMPLETE_WITH("FAST", "SPREAD");
}
/* CLOSE */
else if (Matches("CLOSE"))
COMPLETE_WITH_QUERY_PLUS(Query_for_list_of_cursors,