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<title>ALTER TYPE</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
<a name="sql-altertype"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2>Name</h2>
<p> ALTER TYPE
— change the definition of a type
</p>
</div>
<a name="id747339"></a><div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">ALTER TYPE <em class="replaceable"><code>name</code></em> OWNER TO <em class="replaceable"><code>new_owner</code></em>
ALTER TYPE <em class="replaceable"><code>name</code></em> SET SCHEMA <em class="replaceable"><code>new_schema</code></em>
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id747384"></a><h2>Description</h2>
<p> <code class="command">ALTER TYPE</code> changes the definition of an existing type.
The only currently available capabilities are changing the owner and schema
of a type.
</p>
<p> You must own the type to use <code class="command">ALTER TYPE</code>.
To change the schema of a type, you must also have
<code class="literal">CREATE</code> privilege on the new schema.
To alter the owner, you must also be a direct or indirect member of the new
owning role, and that role must have <code class="literal">CREATE</code> privilege on
the type's schema. (These restrictions enforce that altering the owner
doesn't do anything you couldn't do by dropping and recreating the type.
However, a superuser can alter ownership of any type anyway.)
</p>
</div>
<div class="refsect1" lang="en">
<a name="id747430"></a><h2>Parameters</h2>
<p> </p>
<div class="variablelist"><dl>
<dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt>
<dd><p> The name (possibly schema-qualified) of an existing type to
alter.
</p></dd>
<dt><span class="term"><em class="replaceable"><code>new_owner</code></em></span></dt>
<dd><p> The user name of the new owner of the type.
</p></dd>
<dt><span class="term"><em class="replaceable"><code>new_schema</code></em></span></dt>
<dd><p> The new schema for the type.
</p></dd>
</dl></div>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id747476"></a><h2>Examples</h2>
<p>
To change the owner of the user-defined type <code class="literal">email</code>
to <code class="literal">joe</code>:
</p>
<pre class="programlisting">ALTER TYPE email OWNER TO joe;
</pre>
<p>
</p>
<p> To change the schema of the user-defined type <code class="literal">email</code>
to <code class="literal">customers</code>:
</p>
<pre class="programlisting">ALTER TYPE email SET SCHEMA customers;
</pre>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id747527"></a><h2>Compatibility</h2>
<p> There is no <code class="command">ALTER TYPE</code> statement in the SQL
standard.
</p>
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