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Diffstat (limited to 'doc/src/sgml/brin.sgml')
| -rw-r--r-- | doc/src/sgml/brin.sgml | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/src/sgml/brin.sgml b/doc/src/sgml/brin.sgml index 5140a38baad..ad11109775f 100644 --- a/doc/src/sgml/brin.sgml +++ b/doc/src/sgml/brin.sgml @@ -80,6 +80,10 @@ or by automatic summarization executed by autovacuum, as insertions occur. (This last trigger is disabled by default and can be enabled with the <literal>autosummarize</literal> parameter.) + Conversely, a range can be de-summarized using the + <function>brin_desummarize_range(regclass, bigint)</function> range, + which is useful when the index tuple is no longer a very good + representation because the existing values have changed. </para> </sect2> |