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1 | 1 | <!-- |
2 | | -$PostgreSQL: pgsql/doc/src/sgml/ref/create_aggregate.sgml,v 1.29 2003/11/29 19:51:38 pgsql Exp $ |
| 2 | +$PostgreSQL: pgsql/doc/src/sgml/ref/create_aggregate.sgml,v 1.30 2004/04/21 21:52:41 neilc Exp $ |
3 | 3 | PostgreSQL documentation |
4 | 4 | --> |
5 | 5 |
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@@ -34,12 +34,12 @@ CREATE AGGREGATE <replaceable class="PARAMETER">name</replaceable> ( |
34 | 34 | <title>Description</title> |
35 | 35 |
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36 | 36 | <para> |
37 | | - <command>CREATE AGGREGATE</command> defines a new aggregate function. Some aggregate functions |
38 | | -for base types such as <function>min(integer)</function> |
39 | | -and <function>avg(double precision)</function> are already providedinthe standard |
40 | | -distribution. If one defines new types or needs an aggregate function not |
41 | | - already provided, then <command>CREATE AGGREGATE</command> |
42 | | - can be used to provide the desired features. |
| 37 | + <command>CREATE AGGREGATE</command> defines a new aggregate |
| 38 | +function. Some basic and commonly-used aggregate functions are |
| 39 | +included with the distribution; they are documentedin<xref |
| 40 | +linkend="functions-aggregate">. If one defines new types or needs |
| 41 | +an aggregate function notalready provided, then <command>CREATE |
| 42 | +AGGREGATE</command>can be used to provide the desired features. |
43 | 43 | </para> |
44 | 44 |
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45 | 45 | <para> |
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