com.hazelcast.jet.sql.impl.aggregate.function.HazelcastAvgAggFunction Maven / Gradle / Ivy
/*
* Copyright 2024 Hazelcast Inc.
*
* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://hazelcast.com/hazelcast-community-license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.jet.sql.impl.aggregate.function;
import com.hazelcast.jet.sql.impl.validate.HazelcastCallBinding;
import com.hazelcast.jet.sql.impl.validate.operators.common.HazelcastAggFunction;
import com.hazelcast.jet.sql.impl.validate.operators.typeinference.ReplaceUnknownOperandTypeInference;
import com.hazelcast.jet.sql.impl.validate.types.HazelcastTypeUtils;
import com.hazelcast.shaded.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.shaded.org.apache.calcite.sql.SqlFunctionCategory;
import com.hazelcast.shaded.org.apache.calcite.sql.SqlKind;
import com.hazelcast.shaded.org.apache.calcite.sql.type.ReturnTypes;
import com.hazelcast.shaded.org.apache.calcite.util.Optionality;
import static com.hazelcast.shaded.org.apache.calcite.sql.type.SqlTypeName.BIGINT;
public class HazelcastAvgAggFunction extends HazelcastAggFunction {
public HazelcastAvgAggFunction() {
super(
"AVG",
SqlKind.AVG,
ReturnTypes.AVG_AGG_FUNCTION,
new ReplaceUnknownOperandTypeInference(BIGINT),
null,
SqlFunctionCategory.NUMERIC,
false,
false,
Optionality.FORBIDDEN);
}
protected boolean checkOperandTypes(HazelcastCallBinding binding, boolean throwOnFailure) {
RelDataType operandType = binding.getOperandType(0);
if (!HazelcastTypeUtils.isNumericType(operandType)) {
if (throwOnFailure) {
throw binding.newValidationSignatureError();
} else {
return false;
}
}
return true;
}
}
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