integration/spark/src/main/scala/org/apache/spark/sql/hive/CarbonSQLDialect.scala

/*
 * 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
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package org.apache.spark.sql.hive

import org.apache.spark.sql.CarbonSqlParser
import org.apache.spark.sql.catalyst.ParserDialect
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan

import org.apache.carbondata.spark.exception.MalformedCarbonCommandException

private[spark] class CarbonSQLDialect(hiveContext: HiveContext) extends ParserDialect {

  @transient
  protected val sqlParser = new CarbonSqlParser

  override def parse(sqlText: String): LogicalPlan = {

    try {
      sqlParser.parse(sqlText)
    } catch {
      // MalformedCarbonCommandException need to throw directly
      // because hive can no parse carbon command
      case ce: MalformedCarbonCommandException =>
        throw ce
      case _: Throwable =>
        HiveQl.parseSql(sqlText)
    }
  }
}