/*
// Licensed to Julian Hyde under one or more contributor license
// agreements. See the NOTICE file distributed with this work for
// additional information regarding copyright ownership.
//
// Julian Hyde licenses this file to you under the Apache License,
// Version 2.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
package org.eigenbase.sql.fun;
import org.eigenbase.reltype.RelDataType;
import org.eigenbase.sql.SqlKind;
import org.eigenbase.sql.SqlOperatorBinding;
import org.eigenbase.sql.type.SqlTypeUtil;
/**
* Definition of the SQL:2003 standard ARRAY constructor, <code>MULTISET
* [<expr>, ...]</code>.
*/
public class SqlArrayValueConstructor extends SqlMultisetValueConstructor {
public SqlArrayValueConstructor() {
super("ARRAY", SqlKind.ARRAY_VALUE_CONSTRUCTOR);
}
@Override
public RelDataType inferReturnType(SqlOperatorBinding opBinding) {
RelDataType type =
getComponentType(
opBinding.getTypeFactory(),
opBinding.collectOperandTypes());
if (null == type) {
return null;
}
return SqlTypeUtil.createArrayType(
opBinding.getTypeFactory(), type, false);
}
}
// End SqlArrayValueConstructor.java