summaryrefslogtreecommitdiff
path: root/doc/src/sgml/catalogs.sgml
diff options
context:
space:
mode:
Diffstat (limited to 'doc/src/sgml/catalogs.sgml')
-rw-r--r--doc/src/sgml/catalogs.sgml120
1 files changed, 0 insertions, 120 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index 2c2190f13d3..9096ee5d517 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -279,11 +279,6 @@
</row>
<row>
- <entry><link linkend="catalog-pg-tablesample-method"><structname>pg_tablesample_method</structname></link></entry>
- <entry>table sampling methods</entry>
- </row>
-
- <row>
<entry><link linkend="catalog-pg-tablespace"><structname>pg_tablespace</structname></link></entry>
<entry>tablespaces within this database cluster</entry>
</row>
@@ -6132,121 +6127,6 @@
</sect1>
- <sect1 id="catalog-pg-tablesample-method">
- <title><structname>pg_tabesample_method</structname></title>
-
- <indexterm zone="catalog-pg-tablesample-method">
- <primary>pg_am</primary>
- </indexterm>
-
- <para>
- The catalog <structname>pg_tablesample_method</structname> stores
- information about table sampling methods which can be used in
- <command>TABLESAMPLE</command> clause of a <command>SELECT</command>
- statement.
- </para>
-
- <table>
- <title><structname>pg_tablesample_method</> Columns</title>
-
- <tgroup cols="4">
- <thead>
- <row>
- <entry>Name</entry>
- <entry>Type</entry>
- <entry>References</entry>
- <entry>Description</entry>
- </row>
- </thead>
- <tbody>
-
- <row>
- <entry><structfield>oid</structfield></entry>
- <entry><type>oid</type></entry>
- <entry></entry>
- <entry>Row identifier (hidden attribute; must be explicitly selected)</entry>
- </row>
-
- <row>
- <entry><structfield>tsmname</structfield></entry>
- <entry><type>name</type></entry>
- <entry></entry>
- <entry>Name of the sampling method</entry>
- </row>
-
- <row>
- <entry><structfield>tsmseqscan</structfield></entry>
- <entry><type>bool</type></entry>
- <entry></entry>
- <entry>If true, the sampling method scans the whole table sequentially.
- </entry>
- </row>
-
- <row>
- <entry><structfield>tsmpagemode</structfield></entry>
- <entry><type>bool</type></entry>
- <entry></entry>
- <entry>If true, the sampling method always reads the pages completely.
- </entry>
- </row>
-
- <row>
- <entry><structfield>tsminit</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry><quote>Initialize the sampling scan</quote> function</entry>
- </row>
-
- <row>
- <entry><structfield>tsmnextblock</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry><quote>Get next block number</quote> function</entry>
- </row>
-
- <row>
- <entry><structfield>tsmnexttuple</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry><quote>Get next tuple offset</quote> function</entry>
- </row>
-
- <row>
- <entry><structfield>tsmexaminetuple</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry>Function which examines the tuple contents and decides if to
- return it, or zero if none</entry>
- </row>
-
- <row>
- <entry><structfield>tsmend</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry><quote>End the sampling scan</quote> function</entry>
- </row>
-
- <row>
- <entry><structfield>tsmreset</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry><quote>Restart the state of sampling scan</quote> function</entry>
- </row>
-
- <row>
- <entry><structfield>tsmcost</structfield></entry>
- <entry><type>regproc</type></entry>
- <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
- <entry>Costing function</entry>
- </row>
-
- </tbody>
- </tgroup>
- </table>
-
- </sect1>
-
-
<sect1 id="catalog-pg-tablespace">
<title><structname>pg_tablespace</structname></title>