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Move dbsize functions into the backend. New functions:

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pg_tablespace_size
	pg_database_size
	pg_relation_size
	pg_complete_relation_size
	pg_size_pretty

Remove /contrib/dbsize.

Dave Page
This commit is contained in:
Bruce Momjian
2005-07-29 14:47:04 +00:00
parent b05801c828
commit 358a897fa1
10 changed files with 620 additions and 615 deletions
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23
doc/src/sgml/diskusage.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.14 2005/01/10 00:04:38 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.15 2005/07/29 14:46:56 momjian Exp $
-->
<chapter id="diskusage">
@ -31,11 +31,16 @@ $PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.14 2005/01/10 00:04:38 tgl Ex
</para>
<para>
You can monitor disk space from three places: from
<application>psql</> using <command>VACUUM</> information, from
<application>psql</> using the tools in <filename>contrib/dbsize</>, and from
the command line using the tools in <filename>contrib/oid2name</>. Using
<application>psql</> on a recently vacuumed or analyzed database,
You can monitor disk space from three ways: using
SQL functions listed in <xref linkend="functions-admin-dbsize">,
using <command>VACUUM</> information, and from the command line
using the tools in <filename>contrib/oid2name</>. The SQL functions
are the easiest to use and report information about tables, tables with
indexes and long value storage (TOAST), databases, and tablespaces.
</para>
<para>
Using <application>psql</> on a recently vacuumed or analyzed database,
you can issue queries to see the disk usage of any table:
<programlisting>
SELECT relfilenode, relpages FROM pg_class WHERE relname = 'customer';
@ -101,12 +106,6 @@ SELECT relname, relpages FROM pg_class ORDER BY relpages DESC;
</programlisting>
</para>
<para>
<filename>contrib/dbsize</> loads functions into your database that allow
you to find the size of a table or database from inside
<application>psql</> without the need for <command>VACUUM</> or <command>ANALYZE</>.
</para>
<para>
You can also use <filename>contrib/oid2name</> to show disk usage. See
<filename>README.oid2name</> in that directory for examples. It includes a script that