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| author | Bruce Momjian <bruce@momjian.us> | 2021-04-07 14:03:56 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2021-04-07 14:04:06 -0400 |
| commit | 4f0b0966c866ae9f0e15d7cc73ccf7ce4e1af84b (patch) | |
| tree | f0848c536dcce037e64218f52bd9bc8f1cc3f0ae /doc/src/sgml/ref/explain.sgml | |
| parent | ec7ffb8096e8eb90f4c9230f7ba9487f0abe1a9f (diff) | |
| download | postgresql-4f0b0966c866ae9f0e15d7cc73ccf7ce4e1af84b.tar.gz postgresql-4f0b0966c866ae9f0e15d7cc73ccf7ce4e1af84b.zip | |
Make use of in-core query id added by commit 5fd9dfa5f5
Use the in-core query id computation for pg_stat_activity,
log_line_prefix, and EXPLAIN VERBOSE.
Similar to other fields in pg_stat_activity, only the queryid from the
top level statements are exposed, and if the backends status isn't
active then the queryid from the last executed statements is displayed.
Add a %Q placeholder to include the queryid in log_line_prefix, which
will also only expose top level statements.
For EXPLAIN VERBOSE, if a query identifier has been computed, either by
enabling compute_query_id or using a third-party module, display it.
Bump catalog version.
Discussion: https://postgr.es/m/20210407125726.tkvjdbw76hxnpwfi@nol
Author: Julien Rouhaud
Reviewed-by: Alvaro Herrera, Nitin Jadhav, Zhihong Yu
Diffstat (limited to 'doc/src/sgml/ref/explain.sgml')
| -rw-r--r-- | doc/src/sgml/ref/explain.sgml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/src/sgml/ref/explain.sgml b/doc/src/sgml/ref/explain.sgml index c4512332a06..4d758fb237e 100644 --- a/doc/src/sgml/ref/explain.sgml +++ b/doc/src/sgml/ref/explain.sgml @@ -136,8 +136,10 @@ ROLLBACK; the output column list for each node in the plan tree, schema-qualify table and function names, always label variables in expressions with their range table alias, and always print the name of each trigger for - which statistics are displayed. This parameter defaults to - <literal>FALSE</literal>. + which statistics are displayed. The query identifier will also be + displayed if one has been computed, see <xref + linkend="guc-compute-query-id"/> for more details. This parameter + defaults to <literal>FALSE</literal>. </para> </listitem> </varlistentry> |