org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.HiveExtractDate Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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package org.apache.hadoop.hive.ql.optimizer.calcite.reloperators;
import com.google.common.collect.Sets;
import org.apache.calcite.sql.SqlFunction;
import org.apache.calcite.sql.SqlFunctionCategory;
import org.apache.calcite.sql.SqlKind;
import org.apache.calcite.sql.type.OperandTypes;
import org.apache.calcite.sql.type.ReturnTypes;
import org.apache.calcite.sql.type.SqlTypeTransforms;
import java.util.Set;
public class HiveExtractDate extends SqlFunction {
public static final SqlFunction YEAR = new HiveExtractDate("YEAR");
public static final SqlFunction QUARTER = new HiveExtractDate("QUARTER");
public static final SqlFunction MONTH = new HiveExtractDate("MONTH");
public static final SqlFunction WEEK = new HiveExtractDate("WEEK");
public static final SqlFunction DAY = new HiveExtractDate("DAY");
public static final SqlFunction HOUR = new HiveExtractDate("HOUR");
public static final SqlFunction MINUTE = new HiveExtractDate("MINUTE");
public static final SqlFunction SECOND = new HiveExtractDate("SECOND");
public static final Set ALL_FUNCTIONS =
Sets.newHashSet(YEAR, QUARTER, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND);
private HiveExtractDate(String name) {
super(name, SqlKind.EXTRACT,
ReturnTypes.cascade(ReturnTypes.INTEGER, SqlTypeTransforms.FORCE_NULLABLE), null,
OperandTypes.INTERVALINTERVAL_INTERVALDATETIME,
SqlFunctionCategory.SYSTEM);
}
}