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| author | Robert Haas <rhaas@postgresql.org> | 2012-01-27 12:13:49 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2012-01-27 12:14:23 -0500 |
| commit | db6de5b71ef2d91dde94fc0de8adf45372bc332d (patch) | |
| tree | 9ba285cbb3550a5e14f5015c09d0dbfef6681e77 | |
| parent | cf3fff6326299deca77c1387df31d24aea36e2e1 (diff) | |
| download | postgresql-db6de5b71ef2d91dde94fc0de8adf45372bc332d.tar.gz postgresql-db6de5b71ef2d91dde94fc0de8adf45372bc332d.zip | |
Document that analyzing an empty table doesn't update the statistics.
Per a suggestion from Sergey Konoplev
| -rw-r--r-- | doc/src/sgml/ref/analyze.sgml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/analyze.sgml b/doc/src/sgml/ref/analyze.sgml index 7545fa5d869..8c9057beb91 100644 --- a/doc/src/sgml/ref/analyze.sgml +++ b/doc/src/sgml/ref/analyze.sgml @@ -190,6 +190,12 @@ ANALYZE [ VERBOSE ] [ <replaceable class="PARAMETER">table</replaceable> [ ( <re or updated, the inheritance statistics will not be up to date unless you run <command>ANALYZE</command> manually. </para> + + <para> + If the table being analyzed is completely empty, <command>ANALYZE</command> + will not record new statistics for that table. Any existing statistics + will be retained. + </para> </refsect1> <refsect1> |