be/src/exec/empty-set-node.cc

// Licensed to the Apache Software Foundation (ASF) under one
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// 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.

#include "exec/empty-set-node.h"

#include "common/names.h"

namespace impala {

EmptySetNode::EmptySetNode(ObjectPool* pool, const TPlanNode& tnode,
                     const DescriptorTbl& descs)
    : ExecNode(pool, tnode, descs) {
}

Status EmptySetNode::GetNext(RuntimeState* state, RowBatch* row_batch, bool* eos) {
  *eos = true;
  return Status::OK();
}

}