34 lines
1.8 KiB
Plaintext
34 lines
1.8 KiB
Plaintext
pg_waldump decodes and displays PostgreSQL write-ahead logs for debugging.
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Usage:
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pg_waldump [OPTION]... [STARTSEG [ENDSEG]]
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Options:
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-b, --bkp-details output detailed information about backup blocks
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-B, --block=N with --relation, only show records that modify block N
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-e, --end=RECPTR stop reading at WAL location RECPTR
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-f, --follow keep retrying after reaching end of WAL
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-F, --fork=FORK only show records that modify blocks in fork FORK;
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valid names are main, fsm, vm, init
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-n, --limit=N number of records to display
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-p, --path=PATH directory in which to find WAL segment files or a
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directory with a ./pg_wal that contains such files
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(default: current directory, ./pg_wal, $PGDATA/pg_wal)
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-q, --quiet do not print any output, except for errors
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-r, --rmgr=RMGR only show records generated by resource manager RMGR;
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use --rmgr=list to list valid resource manager names
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-R, --relation=T/D/R only show records that modify blocks in relation T/D/R
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-s, --start=RECPTR start reading at WAL location RECPTR
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-t, --timeline=TLI timeline from which to read WAL records
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(default: 1 or the value used in STARTSEG)
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-V, --version output version information, then exit
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-w, --fullpage only show records with a full page write
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-x, --xid=XID only show records with transaction ID XID
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-z, --stats[=record] show statistics instead of records
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(optionally, show per-record statistics)
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--save-fullpage=DIR save full page images to DIR
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-?, --help show this help, then exit
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Report bugs to <pgsql-bugs@lists.postgresql.org>.
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PostgreSQL home page: <https://www.postgresql.org/>
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