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Green_GoodERP18_FSJ_Standard/PostgreSQL/doc/postgresql/html/sql-createpublication.html

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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>

  2. <!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>CREATE PUBLICATION</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 V1.79.1" /><link rel="prev" href="sql-createprocedure.html" title="CREATE PROCEDURE" /><link rel="next" href="sql-createrole.html" title="CREATE ROLE" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">CREATE PUBLICATION</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-createprocedure.html" title="CREATE PROCEDURE">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 12.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-createrole.html" title="CREATE ROLE">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SQL-CREATEPUBLICATION"><div class="titlepage"></div><a id="id-1.9.3.77.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">CREATE PUBLICATION</span></h2><p>CREATE PUBLICATION — define a new publication</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">

  3. CREATE PUBLICATION <em class="replaceable"><code>name</code></em>

  4.     [ FOR TABLE [ ONLY ] <em class="replaceable"><code>table_name</code></em> [ * ] [, ...]

  5.       | FOR ALL TABLES ]

  6.     [ WITH ( <em class="replaceable"><code>publication_parameter</code></em> [= <em class="replaceable"><code>value</code></em>] [, ... ] ) ]

  7. 

  8. </pre></div><div class="refsect1" id="id-1.9.3.77.5"><h2>Description</h2><p>

  9.    <code class="command">CREATE PUBLICATION</code> adds a new publication

  10.    into the current database.  The publication name must be distinct from

  11.    the name of any existing publication in the current database.

  12.   </p><p>

  13.    A publication is essentially a group of tables whose data changes are

  14.    intended to be replicated through logical replication.  See

  15.    <a class="xref" href="logical-replication-publication.html" title="30.1. Publication">Section 30.1</a> for details about how

  16.    publications fit into the logical replication setup.

  17.    </p></div><div class="refsect1" id="id-1.9.3.77.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>

  18.       The name of the new publication.

  19.      </p></dd><dt><span class="term"><code class="literal">FOR TABLE</code></span></dt><dd><p>

  20.       Specifies a list of tables to add to the publication.  If

  21.       <code class="literal">ONLY</code> is specified before the table name, only

  22.       that table is added to the publication.  If <code class="literal">ONLY</code> is not

  23.       specified, the table and all its descendant tables (if any) are added.

  24.       Optionally, <code class="literal">*</code> can be specified after the table name to

  25.       explicitly indicate that descendant tables are included.

  26.      </p><p>

  27.       Only persistent base tables can be part of a publication.  Temporary

  28.       tables, unlogged tables, foreign tables, materialized views, regular

  29.       views, and partitioned tables cannot be part of a publication.  To

  30.       replicate a partitioned table, add the individual partitions to the

  31.       publication.

  32.      </p></dd><dt><span class="term"><code class="literal">FOR ALL TABLES</code></span></dt><dd><p>

  33.       Marks the publication as one that replicates changes for all tables in

  34.       the database, including tables created in the future.

  35.      </p></dd><dt><span class="term"><code class="literal">WITH ( <em class="replaceable"><code>publication_parameter</code></em> [= <em class="replaceable"><code>value</code></em>] [, ... ] )</code></span></dt><dd><p>

  36.       This clause specifies optional parameters for a publication.  The

  37.       following parameters are supported:

  38. 

  39.       </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">publish</code> (<code class="type">string</code>)</span></dt><dd><p>

  40.           This parameter determines which DML operations will be published by

  41.           the new publication to the subscribers.  The value is

  42.           comma-separated list of operations.  The allowed operations are

  43.           <code class="literal">insert</code>, <code class="literal">update</code>,

  44.           <code class="literal">delete</code>, and <code class="literal">truncate</code>.

  45.           The default is to publish all actions,

  46.           and so the default value for this option is

  47.           <code class="literal">'insert, update, delete, truncate'</code>.

  48.          </p></dd></dl></div><p>

  49. 

  50.      </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.77.7"><h2>Notes</h2><p>

  51.    If neither <code class="literal">FOR TABLE</code> nor <code class="literal">FOR ALL

  52.    TABLES</code> is specified, then the publication starts out with an

  53.    empty set of tables.  That is useful if tables are to be added later.

  54.   </p><p>

  55.    The creation of a publication does not start replication.  It only defines

  56.    a grouping and filtering logic for future subscribers.

  57.   </p><p>

  58.    To create a publication, the invoking user must have the

  59.    <code class="literal">CREATE</code> privilege for the current database.

  60.    (Of course, superusers bypass this check.)

  61.   </p><p>

  62.    To add a table to a publication, the invoking user must have ownership

  63.    rights on the table.  The <code class="command">FOR ALL TABLES</code> clause requires

  64.    the invoking user to be a superuser.

  65.   </p><p>

  66.    The tables added to a publication that publishes <code class="command">UPDATE</code>

  67.    and/or <code class="command">DELETE</code> operations must have

  68.    <code class="literal">REPLICA IDENTITY</code> defined.  Otherwise those operations will be

  69.    disallowed on those tables.

  70.   </p><p>

  71.    For an <code class="command">INSERT ... ON CONFLICT</code> command, the publication will

  72.    publish the operation that actually results from the command.  So depending

  73.    of the outcome, it may be published as either <code class="command">INSERT</code> or

  74.    <code class="command">UPDATE</code>, or it may not be published at all.

  75.   </p><p>

  76.    <code class="command">COPY ... FROM</code> commands are published

  77.    as <code class="command">INSERT</code> operations.

  78.   </p><p>

  79.    <acronym class="acronym">DDL</acronym> operations are not published.

  80.   </p></div><div class="refsect1" id="id-1.9.3.77.8"><h2>Examples</h2><p>

  81.    Create a publication that publishes all changes in two tables:

  82. </p><pre class="programlisting">

  83. CREATE PUBLICATION mypublication FOR TABLE users, departments;

  84. </pre><p>

  85.   </p><p>

  86.    Create a publication that publishes all changes in all tables:

  87. </p><pre class="programlisting">

  88. CREATE PUBLICATION alltables FOR ALL TABLES;

  89. </pre><p>

  90.   </p><p>

  91.    Create a publication that only publishes <code class="command">INSERT</code>

  92.    operations in one table:

  93. </p><pre class="programlisting">

  94. CREATE PUBLICATION insert_only FOR TABLE mydata

  95.     WITH (publish = 'insert');

  96. </pre></div><div class="refsect1" id="id-1.9.3.77.9"><h2>Compatibility</h2><p>

  97.    <code class="command">CREATE PUBLICATION</code> is a <span class="productname">PostgreSQL</span>

  98.    extension.

  99.   </p></div><div class="refsect1" id="id-1.9.3.77.10"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-alterpublication.html" title="ALTER PUBLICATION"><span class="refentrytitle">ALTER PUBLICATION</span></a>, <a class="xref" href="sql-droppublication.html" title="DROP PUBLICATION"><span class="refentrytitle">DROP PUBLICATION</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-createprocedure.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-createrole.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">CREATE PROCEDURE </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> CREATE ROLE</td></tr></table></div></body></html>
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