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Fix documentation oversights about pageinspect and initialization fork. 

The initialization fork was added in 9.1, but has not been taken into
consideration in documents of get_raw_page function in pageinspect and
storage layout. This commit fixes those oversights.

get_raw_page can read not only a table but also an index, etc. So it
should be documented that the function can read any relation. This commit
also fixes the document of pageinspect that way.

Back-patch to 9.1 where those oversights existed.

Vik Fearing, review by MauMau
This commit is contained in:
Fujii Masao 2014-08-11 22:52:16 +09:00
parent 680513ab79
commit 7d835ff4db
2 changed files with 6 additions and 5 deletions
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7
doc/src/sgml/pageinspect.sgml
View File

@ -28,11 +28,12 @@
<listitem> <listitem>
<para> <para>
<function>get_raw_page</function> reads the specified block of the named <function>get_raw_page</function> reads the specified block of the named
table and returns a copy as a <type>bytea</> value. This allows a relation and returns a copy as a <type>bytea</> value. This allows a
single time-consistent copy of the block to be obtained. single time-consistent copy of the block to be obtained.
<replaceable>fork</replaceable> should be <literal>'main'</literal> for <replaceable>fork</replaceable> should be <literal>'main'</literal> for
the main data fork, or <literal>'fsm'</literal> for the free space map, the main data fork, <literal>'fsm'</literal> for the free space map,
or <literal>'vm'</literal> for the visibility map. <literal>'vm'</literal> for the visibility map, or <literal>'init'</literal>
for the initialization fork.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>

4
doc/src/sgml/storage.sgml
View File

@ -265,8 +265,8 @@ The <function>pg_relation_filepath()</> function shows the entire path
as a substitute for remembering many of the above rules. But keep in as a substitute for remembering many of the above rules. But keep in
mind that this function just gives the name of the first segment of the mind that this function just gives the name of the first segment of the
main fork of the relation &mdash; you may need to append a segment number main fork of the relation &mdash; you may need to append a segment number
and/or <literal>_fsm</> or <literal>_vm</> to find all the files associated and/or <literal>_fsm</>, <literal>_vm</>, or <literal>_init</> to find all
with the relation. the files associated with the relation.
</para> </para>
<para> <para>