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Add some real documentation about TOAST (finally). Combine this with

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the old 'page' chapter and the recently added 'filelayout' chapter to
make a coherent chapter about PostgreSQL's physical storage layout.
This commit is contained in:
Tom Lane
2005-01-10 00:04:43 +00:00
parent 521e8888e9
commit ab3bb9cf78
9 changed files with 704 additions and 535 deletions
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6
doc/src/sgml/diskusage.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.13 2004/12/28 19:08:58 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.14 2005/01/10 00:04:38 tgl Exp $
-->
<chapter id="diskusage">
@ -22,12 +22,12 @@ $PostgreSQL: pgsql/doc/src/sgml/diskusage.sgml,v 1.13 2004/12/28 19:08:58 tgl Ex
stored. If the table has any columns with potentially-wide values,
there is also a <acronym>TOAST</> file associated with the table,
which is used to store values too wide to fit comfortably in the main
table. There will be one index on the
table (see <xref linkend="storage-toast">). There will be one index on the
<acronym>TOAST</> table, if present. There may also be indexes associated
with the base table. Each table and index is stored in a separate disk
file &mdash; possibly more than one file, if the file would exceed one
gigabyte. Naming conventions for these files are described in <xref
linkend="file-layout">.
linkend="storage-file-layout">.
</para>
<para>