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2 | 2 |
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3 | 3 | <chapter id="plpgsql"> |
4 | 4 | <title><application>PL/pgSQL</application> - <acronym>SQL</acronym> Procedural Language</title> |
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132 | 132 | </para> |
133 | 133 |
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134 | 134 | <para> |
135 | | - <application>PL/pgSQL</> functions can also be declared to return a |
136 | | -group of values, either as a single row, or a group of rows, like a |
137 | | -table. Such a function generates its output by executing |
138 | | - <command>RETURN NEXT</> for each desired element of the result set, |
139 | | - or by using <command>RETURN QUERY</> to output the result of |
| 135 | + <application>PL/pgSQL</> functions can also be declared to return |
| 136 | +a <quote>set</> (or table) of any data type that can be returned as |
| 137 | +a single instance. Such a function generates its output by executing |
| 138 | + <command>RETURN NEXT</> for each desired element of the result |
| 139 | +set,or by using <command>RETURN QUERY</> to output the result of |
140 | 140 | evaluating a query. |
141 | 141 | </para> |
142 | 142 |
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