blob: 7b8c76af70b6536d068f459068413882ac6df956 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_aggregate.sgml,v 1.3 2003/09/09 18:28:52 tgl Exp $
PostgreSQL documentation
-->
<refentry id="SQL-ALTERAGGREGATE">
<refmeta>
<refentrytitle id="SQL-ALTERAGGREGATE-TITLE">ALTER AGGREGATE</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ALTER AGGREGATE</refname>
<refpurpose>change the definition of an aggregate function</refpurpose>
</refnamediv>
<indexterm zone="sql-alteraggregate">
<primary>ALTER AGGREGATE</primary>
</indexterm>
<refsynopsisdiv>
<synopsis>
ALTER AGGREGATE <replaceable>name</replaceable> ( <replaceable>type</replaceable> ) RENAME TO <replaceable>newname</replaceable>
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>ALTER AGGREGATE</command> changes the definition of an
aggregate function. The only currently available functionality is to
rename the aggregate function.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>
<para>
The name (optionally schema-qualified) of an existing aggregate function.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">type</replaceable></term>
<listitem>
<para>
The argument data type of the aggregate function, or
<literal>*</literal> if the function accepts any data type.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">newname</replaceable></term>
<listitem>
<para>
The new name of the aggregate function.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
To rename the aggregate function <literal>myavg</literal> for type
<type>integer</type> to <literal>my_average</literal>:
<programlisting>
ALTER AGGREGATE myavg(integer) RENAME TO my_average;
</programlisting>
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
There is no <command>ALTER AGGREGATE</command> statement in the SQL
standard.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-createaggregate" endterm="sql-createaggregate-title"></member>
<member><xref linkend="sql-dropaggregate" endterm="sql-dropaggregate-title"></member>
</simplelist>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:nil
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"../reference.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:"/usr/lib/sgml/catalog"
sgml-local-ecat-files:nil
End:
-->
|
