diff options
| author | Magnus Hagander <magnus@hagander.net> | 2019-04-17 13:51:48 +0200 |
|---|---|---|
| committer | Magnus Hagander <magnus@hagander.net> | 2019-04-17 13:51:48 +0200 |
| commit | 252b707bc41cc9bf6c55c18d8cb302a6176b7e48 (patch) | |
| tree | 81ad76fd40b266f9ace5614ee1372df865e8c869 /doc/src | |
| parent | 9010156445c420361c2cef9557751c0b8b52644b (diff) | |
Return NULL for checksum failures if checksums are not enabled
Returning 0 could falsely indicate that there is no problem. NULL
correctly indicates that there is no information about potential
problems.
Also return 0 as numbackends instead of NULL for shared objects (as no
connection can be made to a shared object only).
Author: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Robert Treat <rob@xzilla.net>
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 547fe4cce93..a179d6111e4 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -2600,13 +2600,15 @@ SELECT pid, wait_event_type, wait_event FROM pg_stat_activity WHERE wait_event i <entry><structfield>checksum_failures</structfield></entry> <entry><type>bigint</type></entry> <entry>Number of data page checksum failures detected in this - database</entry> + database (or on a shared object), or NULL if data checksums are not + enabled.</entry> </row> <row> <entry><structfield>checksum_last_failure</structfield></entry> <entry><type>timestamp with time zone</type></entry> <entry>Time at which the last data page checksum failure was detected in - this database, or on a shared object.</entry> + this database (or on a shared object), or NULL if data checksums are not + enabled.</entry> </row> <row> <entry><structfield>blk_read_time</structfield></entry> |