On Tue, Dec 27, 2016 at 6:56 AM, Bruce Momjian <br...@momjian.us> wrote:
> I have found that pg_xlogdump looks for WAL files in the in the current
> directory and the pg_wal subdirectory of both the current directory and
> the PGDATA directory. Doc patch attached.
The whole behavior is listed in pg_xlogdump.c here:
/*
* Try to find the file in several places:
* if directory == NULL:
* fname
* XLOGDIR / fname
* $PGDATA / XLOGDIR / fname
* else
* directory / fname
* directory / XLOGDIR / fname
*
* return a read only fd
*/
static int
fuzzy_open_file(const char *directory, const char *fname)
Updating the docs the way your patch does does not look enough IMO:
1) pg_xlogdump --help should mention PGDATA as well for the default
behavior, and should make clear the default and when -p is defined:
-p, --path=PATH directory in which to find log segment files
(default: ./pg_wal)
2) The documentation does not mention that if a directory is defined
pg_xlogdump will try to look as well at defined_dir/pg_wal.
--
Michael
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