org.apache.comet.shims.CometExprShim.scala Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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
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* KIND, either express or implied. See the License for the
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*/
package org.apache.comet.shims
import org.apache.comet.expressions.CometEvalMode
import org.apache.spark.sql.catalyst.expressions._
import org.apache.spark.sql.types.DataType
/**
* `CometExprShim` acts as a shim for for parsing expressions from different Spark versions.
*/
trait CometExprShim {
/**
* Returns a tuple of expressions for the `unhex` function.
*/
protected def unhexSerde(unhex: Unhex): (Expression, Expression) = {
(unhex.child, Literal(false))
}
protected def isTimestampNTZType(dt: DataType): Boolean =
dt.typeName == "timestamp_ntz" // `TimestampNTZType` is private
protected def evalMode(c: Cast): CometEvalMode.Value = CometEvalMode.fromBoolean(c.ansiEnabled)
}