diff options
Diffstat (limited to '')
| -rw-r--r-- | doc/src/sgml/html/ddl-partitioning.html | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/doc/src/sgml/html/ddl-partitioning.html b/doc/src/sgml/html/ddl-partitioning.html index d818fe4..7b3d0fd 100644 --- a/doc/src/sgml/html/ddl-partitioning.html +++ b/doc/src/sgml/html/ddl-partitioning.html @@ -1,5 +1,5 @@ <?xml version="1.0" encoding="UTF-8" standalone="no"?> -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>5.11. Table Partitioning</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="ddl-inherit.html" title="5.10. Inheritance" /><link rel="next" href="ddl-foreign-data.html" title="5.12. Foreign Data" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">5.11. Table Partitioning</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ddl-inherit.html" title="5.10. Inheritance">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><th width="60%" align="center">Chapter 5. Data Definition</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="ddl-foreign-data.html" title="5.12. Foreign Data">Next</a></td></tr></table><hr /></div><div class="sect1" id="DDL-PARTITIONING"><div class="titlepage"><div><div><h2 class="title" style="clear: both">5.11. Table Partitioning</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-OVERVIEW">5.11.1. Overview</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE">5.11.2. Declarative Partitioning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-USING-INHERITANCE">5.11.3. Partitioning Using Inheritance</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITION-PRUNING">5.11.4. Partition Pruning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-CONSTRAINT-EXCLUSION">5.11.5. Partitioning and Constraint Exclusion</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE-BEST-PRACTICES">5.11.6. Best Practices for Declarative Partitioning</a></span></dt></dl></div><a id="id-1.5.4.13.2" class="indexterm"></a><a id="id-1.5.4.13.3" class="indexterm"></a><a id="id-1.5.4.13.4" class="indexterm"></a><p> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>5.11. Table Partitioning</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="ddl-inherit.html" title="5.10. Inheritance" /><link rel="next" href="ddl-foreign-data.html" title="5.12. Foreign Data" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">5.11. Table Partitioning</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ddl-inherit.html" title="5.10. Inheritance">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><th width="60%" align="center">Chapter 5. Data Definition</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="ddl-foreign-data.html" title="5.12. Foreign Data">Next</a></td></tr></table><hr /></div><div class="sect1" id="DDL-PARTITIONING"><div class="titlepage"><div><div><h2 class="title" style="clear: both">5.11. Table Partitioning</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-OVERVIEW">5.11.1. Overview</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE">5.11.2. Declarative Partitioning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-USING-INHERITANCE">5.11.3. Partitioning Using Inheritance</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITION-PRUNING">5.11.4. Partition Pruning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-CONSTRAINT-EXCLUSION">5.11.5. Partitioning and Constraint Exclusion</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE-BEST-PRACTICES">5.11.6. Best Practices for Declarative Partitioning</a></span></dt></dl></div><a id="id-1.5.4.13.2" class="indexterm"></a><a id="id-1.5.4.13.3" class="indexterm"></a><a id="id-1.5.4.13.4" class="indexterm"></a><p> <span class="productname">PostgreSQL</span> supports basic table partitioning. This section describes why and how to implement partitioning as part of your database design. @@ -368,7 +368,7 @@ ALTER TABLE measurement ATTACH PARTITION measurement_y2008m02 </p><pre class="programlisting"> CREATE INDEX measurement_usls_idx ON ONLY measurement (unitsales); -CREATE INDEX measurement_usls_200602_idx +CREATE INDEX CONCURRENTLY measurement_usls_200602_idx ON measurement_y2006m02 (unitsales); ALTER INDEX measurement_usls_idx ATTACH PARTITION measurement_usls_200602_idx; @@ -449,7 +449,9 @@ ALTER INDEX measurement_city_id_logdate_key Using <code class="literal">ONLY</code> to add or drop a constraint on only the partitioned table is supported as long as there are no partitions. Once partitions exist, using <code class="literal">ONLY</code> - will result in an error. Instead, constraints on the partitions + will result in an error for any constraints other than + <code class="literal">UNIQUE</code> and <code class="literal">PRIMARY KEY</code>. + Instead, constraints on the partitions themselves can be added and (if they are not present in the parent table) dropped. </p></li><li class="listitem"><p> @@ -989,4 +991,4 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01'; painfully slow. Simulations of the intended workload are often beneficial for optimizing the partitioning strategy. Never just assume that more partitions are better than fewer partitions, nor vice-versa. - </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ddl-inherit.html" title="5.10. Inheritance">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ddl-foreign-data.html" title="5.12. Foreign Data">Next</a></td></tr><tr><td width="40%" align="left" valign="top">5.10. Inheritance </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 5.12. Foreign Data</td></tr></table></div></body></html>
\ No newline at end of file + </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ddl-inherit.html" title="5.10. Inheritance">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ddl-foreign-data.html" title="5.12. Foreign Data">Next</a></td></tr><tr><td width="40%" align="left" valign="top">5.10. Inheritance </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 5.12. Foreign Data</td></tr></table></div></body></html>
\ No newline at end of file |