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Add a 'waiting' column to pg_stat_activity to carry the same information

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that ps_status provides by appending 'waiting' to the PS display.  This
completes the project of making it feasible to turn off process title
updates and instead rely on pg_stat_activity.  Per my suggestion a few
weeks ago.
This commit is contained in:
Tom Lane
2006-08-19 01:36:34 +00:00
parent 1be439084a
commit 9bf760f7de
9 changed files with 83 additions and 13 deletions
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16
doc/src/sgml/monitoring.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.36 2006/06/29 20:00:08 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.37 2006/08/19 01:36:23 tgl Exp $ -->
<chapter id="monitoring">
<title>Monitoring Database Activity</title>
@ -245,7 +245,8 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
<row>
<entry><structname>pg_stat_activity</></entry>
<entry>One row per server process, showing database OID, database name,
process <acronym>ID</>, user OID, user name, current query, time at
process <acronym>ID</>, user OID, user name, current query, query's
waiting status, time at
which the current query began execution, time at which the process
was started, and client's address and port number. The columns
that report data on the current query are available unless the
@ -649,6 +650,17 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_backend_waiting</function>(<type>integer</type>)</literal></entry>
<entry><type>boolean</type></entry>
<entry>
True if the given server process is waiting for a lock,
but only if the current user is a superuser or the same user as that of
the session being queried (and
<varname>stats_command_string</varname> is on)
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_backend_activity_start</function>(<type>integer</type>)</literal></entry>
<entry><type>timestamp with time zone</type></entry>