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Add subsection headers in pageinspect documentation 

extracted from a patch from Jesper Pedersen <jesper.pedersen@redhat.com>
This commit is contained in:
Peter Eisentraut 2016-11-01 12:00:00 -04:00
parent adfb81d9e1
commit b5e3942f50
1 changed files with 43 additions and 25 deletions
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68
doc/src/sgml/pageinspect.sgml
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@ -14,7 +14,7 @@
</para>
<sect2>
<title>Functions</title>
<title>General Functions</title>
<variablelist>
<varlistentry>
@ -160,7 +160,36 @@ test=# SELECT * FROM heap_page_item_attrs(get_raw_page('pg_class', 0), 'pg_class
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<function>fsm_page_contents(page bytea) returns text</function>
<indexterm>
<primary>fsm_page_contents</primary>
</indexterm>
</term>
<listitem>
<para>
<function>fsm_page_contents</function> shows the internal node structure
of a FSM page. The output is a multiline string, with one line per
node in the binary tree within the page. Only those nodes that are not
zero are printed. The so-called "next" pointer, which points to the
next slot to be returned from the page, is also printed.
</para>
<para>
See <filename>src/backend/storage/freespace/README</> for more
information on the structure of an FSM page.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2>
<title>B-tree Functions</title>
<variablelist>
<varlistentry>
<term>
<function>bt_metap(relname text) returns record</function>
@ -261,7 +290,13 @@ test=# SELECT * FROM bt_page_items('pg_cast_oid_index', 1);
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2>
<title>BRIN Functions</title>
<variablelist>
<varlistentry>
<term>
<function>brin_page_type(page bytea) returns text</function>
@ -365,7 +400,13 @@ test=# SELECT * FROM brin_page_items(get_raw_page('brinidx', 5),
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2>
<title>GIN Functions</title>
<variablelist>
<varlistentry>
<term>
<function>gin_metapage_info(page bytea) returns record</function>
@ -449,29 +490,6 @@ test=# SELECT first_tid, nbytes, tids[0:5] AS some_tids
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<function>fsm_page_contents(page bytea) returns text</function>
<indexterm>
<primary>fsm_page_contents</primary>
</indexterm>
</term>
<listitem>
<para>
<function>fsm_page_contents</function> shows the internal node structure
of a FSM page. The output is a multiline string, with one line per
node in the binary tree within the page. Only those nodes that are not
zero are printed. The so-called "next" pointer, which points to the
next slot to be returned from the page, is also printed.
</para>
<para>
See <filename>src/backend/storage/freespace/README</> for more
information on the structure of an FSM page.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>