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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/bin/pg_basebackup/pg_createsubscriber.c
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@@ -1262,7 +1262,7 @@ setup_recovery(const struct LogicalRepInfo *dbinfo, const char *datadir, const c
{
appendPQExpBufferStr(recoveryconfcontents, "# dry run mode");
appendPQExpBuffer(recoveryconfcontents,
"recovery_target_lsn = '%X/%X'\n",
"recovery_target_lsn = '%X/%08X'\n",
LSN_FORMAT_ARGS((XLogRecPtr) InvalidXLogRecPtr));
}
else
@@ -1876,7 +1876,7 @@ set_replication_progress(PGconn *conn, const struct LogicalRepInfo *dbinfo, cons
if (dry_run)
{
suboid = InvalidOid;
lsnstr = psprintf("%X/%X", LSN_FORMAT_ARGS((XLogRecPtr) InvalidXLogRecPtr));
lsnstr = psprintf("%X/%08X", LSN_FORMAT_ARGS((XLogRecPtr) InvalidXLogRecPtr));
}
else
{