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[#3985] Supported the array(select) function

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lukaseder 2015-01-26 09:53:08 +01:00
parent f01153f7c0
commit 30d7b868ef
1 changed files with 15 additions and 0 deletions
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15
jOOQ/src/main/java/org/jooq/util/postgres/PostgresDSL.java
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@ -42,9 +42,12 @@ package org.jooq.util.postgres;
import static org.jooq.SQLDialect.POSTGRES;
import org.jooq.DataType;
import org.jooq.Field;
import org.jooq.Record;
import org.jooq.Record1;
import org.jooq.SQLDialect;
import org.jooq.Select;
import org.jooq.Support;
import org.jooq.Table;
import org.jooq.impl.DSL;
@ -66,6 +69,18 @@ public class PostgresDSL extends DSL {
// PostgreSQL-specific array functions
// -------------------------------------------------------------------------
/**
* The PostgreSQL <code>array(select)</code> function.
* <p>
* Example: <code><pre>
* {1, 2, 3} = array(select 1 union select 2 union select 3)
* </pre></code>
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static <T> Field<T[]> array(Select<? extends Record1<T>> select) {
return DSL.field("array({0})", (DataType) select.getSelect().get(0).getDataType().getArrayDataType(), select);
}
/**
* The PostgreSQL <code>array_append(anyarray, anyelement)</code> function.
* <p>