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| author | Michael Paquier <michael@paquier.xyz> | 2025-10-30 15:34:01 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2025-10-30 15:34:01 +0900 |
| commit | 5ab0b6a248076bf373a80bc7e83a5dfa4edf13aa (patch) | |
| tree | 649f999a55443fed31e67568d61ada4a2d48238b /doc | |
| parent | d432094689062b6a0b7b2504b289d34defca8888 (diff) | |
Expose wal_fpi_bytes in EXPLAIN (WAL)
The new wal_fpi_bytes counter calculates the total amount of full page
images inserted in WAL records, in bytes. This commit exposes this
information in EXPLAIN (ANALYZE, WAL) alongside the existing counters,
for both the text and JSON/YAML outputs, building upon f9a09aa29520.
Author: Shinya Kato <shinya11.kato@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discusssion: https://postgr.es/m/CAOzEurQtZEAfg6P0kU3Wa-f9BWQOi0RzJEMPN56wNTOmJLmfaQ@mail.gmail.com
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/src/sgml/ref/explain.sgml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/src/sgml/ref/explain.sgml b/doc/src/sgml/ref/explain.sgml index 6dda680aa0d..7dee77fd366 100644 --- a/doc/src/sgml/ref/explain.sgml +++ b/doc/src/sgml/ref/explain.sgml @@ -241,7 +241,8 @@ ROLLBACK; <para> Include information on WAL record generation. Specifically, include the number of records, number of full page images (fpi), the amount of WAL - generated in bytes and the number of times the WAL buffers became full. + generated in bytes, the amount of full page images generated in bytes, + and the number of times the WAL buffers became full. In text format, only non-zero values are printed. This parameter may only be used when <literal>ANALYZE</literal> is also enabled. It defaults to <literal>FALSE</literal>. |