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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 "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.apache.spark.sql.catalyst.optimizer
import org.apache.spark.sql.catalyst.SimpleCatalystConf
import org.apache.spark.sql.catalyst.analysis.{Analyzer, EmptyFunctionRegistry}
import org.apache.spark.sql.catalyst.catalog.{InMemoryCatalog, SessionCatalog}
import org.apache.spark.sql.catalyst.dsl.expressions._
import org.apache.spark.sql.catalyst.dsl.plans._
import org.apache.spark.sql.catalyst.expressions._
import org.apache.spark.sql.catalyst.plans._
import org.apache.spark.sql.catalyst.plans.logical._
import org.apache.spark.sql.catalyst.rules._
class EliminateSortsSuite extends PlanTest {
val conf = new SimpleCatalystConf(caseSensitiveAnalysis = true, orderByOrdinal = false)
val catalog = new SessionCatalog(new InMemoryCatalog, conf)
val analyzer = new Analyzer(catalog, EmptyFunctionRegistry, conf)
object Optimize extends RuleExecutor[LogicalPlan] {
val batches =
Batch("Eliminate Sorts", Once,
EliminateSorts) :: Nil
}
val testRelation = LocalRelation('a.int, 'b.int, 'c.int)
test("Empty order by clause") {
val x = testRelation
val query = x.orderBy()
val optimized = Optimize.execute(query.analyze)
val correctAnswer = x.analyze
comparePlans(optimized, correctAnswer)
}
test("All the SortOrder are no-op") {
val x = testRelation
val query = x.orderBy(SortOrder(3, Ascending), SortOrder(-1, Ascending))
val optimized = Optimize.execute(analyzer.execute(query))
val correctAnswer = analyzer.execute(x)
comparePlans(optimized, correctAnswer)
}
test("Partial order-by clauses contain no-op SortOrder") {
val x = testRelation
val query = x.orderBy(SortOrder(3, Ascending), 'a.asc)
val optimized = Optimize.execute(analyzer.execute(query))
val correctAnswer = analyzer.execute(x.orderBy('a.asc))
comparePlans(optimized, correctAnswer)
}
}
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