Re: About to add WAL write/fsync statistics to pg_stat_wal view

The documentation for WAL does get into the public API level of detail and doing so here makes what this measures crystal clear.  The potential absence of sufficient detail elsewhere should be corrected instead of making this description more vague.  Specifically, probably XLogWrite should be added to the WAL overview as part of this update and probably even have the descriptive section of the documentation note that the number of times that said function is executed is exposed as a counter in the wal statistics table - thus closing the loop.

David J.