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Standardize LSN formatting by zero padding

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This commit standardizes the output format for LSNs to ensure consistent
representation across various tools and messages.  Previously, LSNs were
inconsistently printed as `%X/%X` in some contexts, while others used
zero-padding.  This often led to confusion when comparing.

To address this, the LSN format is now uniformly set to `%X/%08X`,
ensuring the lower 32-bit part is always zero-padded to eight
hexadecimal digits.

Author: Japin Li <japinli@hotmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Reviewed-by: Álvaro Herrera <alvherre@kurilemu.de>
Discussion: https://postgr.es/m/ME0P300MB0445CA53CA0E4B8C1879AF84B641A@ME0P300MB0445.AUSP300.PROD.OUTLOOK.COM
This commit is contained in:
Álvaro Herrera
2025-07-07 13:57:43 +02:00
parent 62a17a9283
commit 2633dae2e4
67 changed files with 681 additions and 681 deletions
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4
src/backend/replication/syncrep.c
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@@ -258,7 +258,7 @@ SyncRepWaitForLSN(XLogRecPtr lsn, bool commit)
{
char buffer[32];
sprintf(buffer, "waiting for %X/%X", LSN_FORMAT_ARGS(lsn));
sprintf(buffer, "waiting for %X/%08X", LSN_FORMAT_ARGS(lsn));
set_ps_display_suffix(buffer);
}
@@ -566,7 +566,7 @@ SyncRepReleaseWaiters(void)
LWLockRelease(SyncRepLock);
elog(DEBUG3, "released %d procs up to write %X/%X, %d procs up to flush %X/%X, %d procs up to apply %X/%X",
elog(DEBUG3, "released %d procs up to write %X/%08X, %d procs up to flush %X/%08X, %d procs up to apply %X/%08X",
numwrite, LSN_FORMAT_ARGS(writePtr),
numflush, LSN_FORMAT_ARGS(flushPtr),
numapply, LSN_FORMAT_ARGS(applyPtr));