diff options
| author | Tom Lane | 2008-07-16 16:55:24 +0000 |
|---|---|---|
| committer | Tom Lane | 2008-07-16 16:55:24 +0000 |
| commit | 6563e9e2e8b15350e4cb99b86f2f7dec54722155 (patch) | |
| tree | 312342db5f13289768a09d3dca49fc1bf9c2b0da /doc/src | |
| parent | 895a4bccb6663ad04b02905fcbf128e64d30abd9 (diff) | |
Add a "provariadic" column to pg_proc to eliminate the remarkably expensive
need to deconstruct proargmodes for each pg_proc entry inspected by
FuncnameGetCandidates(). Fixes function lookup performance regression
caused by yesterday's variadic-functions patch.
In passing, make pg_proc.probin be NULL, rather than a dummy value '-',
in cases where it is not actually used for the particular type of function.
This should buy back some of the space cost of the extra column.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/catalogs.sgml | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 7accea0f76c..83be70ca666 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.169 2008/07/16 01:30:21 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.170 2008/07/16 16:55:23 tgl Exp $ --> <!-- Documentation of the system catalogs, directed toward PostgreSQL developers --> @@ -3570,6 +3570,14 @@ </row> <row> + <entry><structfield>provariadic</structfield></entry> + <entry><type>oid</type></entry> + <entry><literal><link linkend="catalog-pg-type"><structname>pg_type</structname></link>.oid</literal></entry> + <entry>Data type of the variadic array parameter's elements, + or zero if the function does not have a variadic parameter</entry> + </row> + + <row> <entry><structfield>proisagg</structfield></entry> <entry><type>bool</type></entry> <entry></entry> |