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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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8
contrib/pg_walinspect/expected/pg_walinspect.out
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@ -19,14 +19,14 @@ INSERT INTO sample_tbl SELECT * FROM generate_series(3, 4);
-- ===================================================================
-- Invalid input LSN.
SELECT * FROM pg_get_wal_record_info('0/0');
ERROR: could not read WAL at LSN 0/0
ERROR: could not read WAL at LSN 0/00000000
-- Invalid start LSN.
SELECT * FROM pg_get_wal_records_info('0/0', :'wal_lsn1');
ERROR: could not read WAL at LSN 0/0
ERROR: could not read WAL at LSN 0/00000000
SELECT * FROM pg_get_wal_stats('0/0', :'wal_lsn1');
ERROR: could not read WAL at LSN 0/0
ERROR: could not read WAL at LSN 0/00000000
SELECT * FROM pg_get_wal_block_info('0/0', :'wal_lsn1');
ERROR: could not read WAL at LSN 0/0
ERROR: could not read WAL at LSN 0/00000000
-- Start LSN > End LSN.
SELECT * FROM pg_get_wal_records_info(:'wal_lsn2', :'wal_lsn1');
ERROR: WAL start LSN must be less than end LSN