Thread: pgsql: doc: Add details about object "wal" in pg_stat_io

doc: Add details about object "wal" in pg_stat_io

This commit adds a short description of what kind of activity is tracked
in pg_stat_io for the object "wal", with a link pointing to the section
"WAL configuration" that has a lot of details on the matter.

This should perhaps have been added in a051e71e28a1, but things are what
they are.

Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://postgr.es/m/Z7RkQ0EfYaqqjgz/@ip-10-97-1-34.eu-west-3.compute.internal

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4538bd3f1dde065820438ea461ad30c993982d92

Modified Files
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doc/src/sgml/monitoring.sgml | 10 ++++++++++
1 file changed, 10 insertions(+)