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Rename CHECKPOINT_FLUSH_ALL to CHECKPOINT_FLUSH_UNLOGGED.

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The new name more accurately relects the effects of this flag on a
requested checkpoint.  Checkpoint-related log messages (i.e., those
controlled by the log_checkpoints configuration parameter) will now
say "flush-unlogged" instead of "flush-all", too.  This is
preparatory work for a follow-up commit that will add a
FLUSH_UNLOGGED option to the CHECKPOINT command.

Author: Christoph Berg <myon@debian.org>
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 f25792c541
commit cd8324cc89
4 changed files with 9 additions and 10 deletions
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6
src/backend/access/transam/xlog.c
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@@ -6828,7 +6828,7 @@ LogCheckpointStart(int flags, bool restartpoint)
(flags & CHECKPOINT_WAIT) ? " wait" : "",
(flags & CHECKPOINT_CAUSE_XLOG) ? " wal" : "",
(flags & CHECKPOINT_CAUSE_TIME) ? " time" : "",
(flags & CHECKPOINT_FLUSH_ALL) ? " flush-all" : "")));
(flags & CHECKPOINT_FLUSH_UNLOGGED) ? " flush-unlogged" : "")));
else
ereport(LOG,
/* translator: the placeholders show checkpoint options */
@@ -6840,7 +6840,7 @@ LogCheckpointStart(int flags, bool restartpoint)
(flags & CHECKPOINT_WAIT) ? " wait" : "",
(flags & CHECKPOINT_CAUSE_XLOG) ? " wal" : "",
(flags & CHECKPOINT_CAUSE_TIME) ? " time" : "",
(flags & CHECKPOINT_FLUSH_ALL) ? " flush-all" : "")));
(flags & CHECKPOINT_FLUSH_UNLOGGED) ? " flush-unlogged" : "")));
}
/*
@@ -7028,7 +7028,7 @@ update_checkpoint_display(int flags, bool restartpoint, bool reset)
* CHECKPOINT_FORCE: force a checkpoint even if no XLOG activity has occurred
* since the last one (implied by CHECKPOINT_IS_SHUTDOWN or
* CHECKPOINT_END_OF_RECOVERY).
* CHECKPOINT_FLUSH_ALL: also flush buffers of unlogged tables.
* CHECKPOINT_FLUSH_UNLOGGED: also flush buffers of unlogged tables.
*
* Note: flags contains other bits, of interest here only for logging purposes.
* In particular note that this routine is synchronous and does not pay