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Rename CHECKPOINT_IMMEDIATE to CHECKPOINT_FAST.

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The new name more accurately reflects 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 "fast" instead of "immediate", too.  Likewise, references to
"immediate" checkpoints in the documentation have been updated to
say "fast".  This is preparatory work for a follow-up commit that
will add a MODE 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 cd8324cc89
commit bb938e2c3c
12 changed files with 40 additions and 40 deletions
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25
src/backend/access/transam/xlog.c
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@@ -6486,7 +6486,7 @@ PerformRecoveryXLogAction(void)
else
{
RequestCheckpoint(CHECKPOINT_END_OF_RECOVERY |
CHECKPOINT_IMMEDIATE |
CHECKPOINT_FAST |
CHECKPOINT_WAIT);
}
@@ -6795,7 +6795,7 @@ ShutdownXLOG(int code, Datum arg)
WalSndWaitStopping();
if (RecoveryInProgress())
CreateRestartPoint(CHECKPOINT_IS_SHUTDOWN | CHECKPOINT_IMMEDIATE);
CreateRestartPoint(CHECKPOINT_IS_SHUTDOWN | CHECKPOINT_FAST);
else
{
/*
@@ -6807,7 +6807,7 @@ ShutdownXLOG(int code, Datum arg)
if (XLogArchivingActive())
RequestXLogSwitch(false);
CreateCheckPoint(CHECKPOINT_IS_SHUTDOWN | CHECKPOINT_IMMEDIATE);
CreateCheckPoint(CHECKPOINT_IS_SHUTDOWN | CHECKPOINT_FAST);
}
}
@@ -6823,7 +6823,7 @@ LogCheckpointStart(int flags, bool restartpoint)
(errmsg("restartpoint starting:%s%s%s%s%s%s%s%s",
(flags & CHECKPOINT_IS_SHUTDOWN) ? " shutdown" : "",
(flags & CHECKPOINT_END_OF_RECOVERY) ? " end-of-recovery" : "",
(flags & CHECKPOINT_IMMEDIATE) ? " immediate" : "",
(flags & CHECKPOINT_FAST) ? " fast" : "",
(flags & CHECKPOINT_FORCE) ? " force" : "",
(flags & CHECKPOINT_WAIT) ? " wait" : "",
(flags & CHECKPOINT_CAUSE_XLOG) ? " wal" : "",
@@ -6835,7 +6835,7 @@ LogCheckpointStart(int flags, bool restartpoint)
(errmsg("checkpoint starting:%s%s%s%s%s%s%s%s",
(flags & CHECKPOINT_IS_SHUTDOWN) ? " shutdown" : "",
(flags & CHECKPOINT_END_OF_RECOVERY) ? " end-of-recovery" : "",
(flags & CHECKPOINT_IMMEDIATE) ? " immediate" : "",
(flags & CHECKPOINT_FAST) ? " fast" : "",
(flags & CHECKPOINT_FORCE) ? " force" : "",
(flags & CHECKPOINT_WAIT) ? " wait" : "",
(flags & CHECKPOINT_CAUSE_XLOG) ? " wal" : "",
@@ -7023,8 +7023,8 @@ update_checkpoint_display(int flags, bool restartpoint, bool reset)
* flags is a bitwise OR of the following:
* CHECKPOINT_IS_SHUTDOWN: checkpoint is for database shutdown.
* CHECKPOINT_END_OF_RECOVERY: checkpoint is for end of WAL recovery.
* CHECKPOINT_IMMEDIATE: finish the checkpoint ASAP,
* ignoring checkpoint_completion_target parameter.
* CHECKPOINT_FAST: finish the checkpoint ASAP, ignoring
* checkpoint_completion_target parameter.
* 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).
@@ -8929,9 +8929,8 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli)
* backup state and tablespace map.
*
* Input parameters are "state" (the backup state), "fast" (if true, we do
* the checkpoint in immediate mode to make it faster), and "tablespaces"
* (if non-NULL, indicates a list of tablespaceinfo structs describing the
* cluster's tablespaces.).
* the checkpoint in fast mode), and "tablespaces" (if non-NULL, indicates a
* list of tablespaceinfo structs describing the cluster's tablespaces.).
*
* The tablespace map contents are appended to passed-in parameter
* tablespace_map and the caller is responsible for including it in the backup
@@ -9059,11 +9058,11 @@ do_pg_backup_start(const char *backupidstr, bool fast, List **tablespaces,
* during recovery means that checkpointer is running, we can use
* RequestCheckpoint() to establish a restartpoint.
*
* We use CHECKPOINT_IMMEDIATE only if requested by user (via
* passing fast = true). Otherwise this can take awhile.
* We use CHECKPOINT_FAST only if requested by user (via passing
* fast = true). Otherwise this can take awhile.
*/
RequestCheckpoint(CHECKPOINT_FORCE | CHECKPOINT_WAIT |
(fast ? CHECKPOINT_IMMEDIATE : 0));
(fast ? CHECKPOINT_FAST : 0));
/*
* Now we need to fetch the checkpoint record location, and also