/*
 * 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.execution.command

import org.apache.spark.sql.catalyst.analysis.{AnalysisTest, UnresolvedTable}
import org.apache.spark.sql.catalyst.catalog.ClusterBySpec
import org.apache.spark.sql.catalyst.parser.CatalystSqlParser.parsePlan
import org.apache.spark.sql.catalyst.plans.logical.AlterTableClusterBy
import org.apache.spark.sql.connector.expressions.FieldReference
import org.apache.spark.sql.test.SharedSparkSession

class AlterTableClusterByParserSuite extends AnalysisTest with SharedSparkSession {

  test("alter table cluster by") {
    comparePlans(
      parsePlan("ALTER TABLE table_name CLUSTER BY (`a.b`, c.d, none)"),
      AlterTableClusterBy(
        UnresolvedTable(Seq("table_name"), "ALTER TABLE ... CLUSTER BY"),
        Some(ClusterBySpec(Seq(
          FieldReference(Seq("a.b")),
          FieldReference(Seq("c", "d")),
          FieldReference(Seq("none")))))))

    comparePlans(
      parsePlan("ALTER TABLE table_name CLUSTER BY NONE"),
      AlterTableClusterBy(
        UnresolvedTable(Seq("table_name"), "ALTER TABLE ... CLUSTER BY"),
        None))
  }
}
