diff options
| -rw-r--r-- | doc/src/sgml/ref/vacuumdb.sgml | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/doc/src/sgml/ref/vacuumdb.sgml b/doc/src/sgml/ref/vacuumdb.sgml index d8cbf0e189d..956c0f01cbc 100644 --- a/doc/src/sgml/ref/vacuumdb.sgml +++ b/doc/src/sgml/ref/vacuumdb.sgml @@ -397,7 +397,7 @@ PostgreSQL documentation <listitem> <para> Only calculate statistics for use by the optimizer (no vacuum), - like <option>--analyze-only</option>. Run several (currently three) + like <option>--analyze-only</option>. Run three stages of analyze; the first stage uses the lowest possible statistics target (see <xref linkend="guc-default-statistics-target"/>) to produce usable statistics faster, and subsequent stages build the @@ -405,10 +405,10 @@ PostgreSQL documentation </para> <para> - This option is only useful to analyze a database that current has - no statistics or wholly incorrect ones, such as if it is newly + This option is only useful to analyze a database that currently has + no statistics or has wholly incorrect ones, such as if it is newly populated from a restored dump or by <command>pg_upgrade</command>. - Be aware that running this option in a database with existing + Be aware that running with this option in a database with existing statistics may cause the query optimizer choices to become transiently worse due to the low statistics targets of the early stages. |