diff options
| -rw-r--r-- | doc/src/sgml/ref/create_statistics.sgml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/create_statistics.sgml b/doc/src/sgml/ref/create_statistics.sgml index 3a92fc55ede..d6b25ed2c9b 100644 --- a/doc/src/sgml/ref/create_statistics.sgml +++ b/doc/src/sgml/ref/create_statistics.sgml @@ -171,6 +171,12 @@ CREATE STATISTICS [ [ IF NOT EXISTS ] <replaceable class="parameter">statistics_ maintenance. Expression statistics are built automatically for each expression in the statistics object definition. </para> + + <para> + Extended statistics are not currently used by the planner for selectivity + estimations made for table joins. This limitation will likely be removed + in a future version of <productname>PostgreSQL</productname>. + </para> </refsect1> <refsect1 id="sql-createstatistics-examples"> |