// 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.

#include "exprs/vinfo_func.h"

#include <gen_cpp/Exprs_types.h>

#include <glog/logging.h>

#include <algorithm>

#include "core/block/block.h"

#include "core/data_type/data_type.h"

#include "core/data_type/define_primitive_type.h"

#include "core/field.h"

#include "core/types.h"

namespace doris {

#include "common/compile_check_begin.h"

class VExprContext;

VInfoFunc::VInfoFunc(const TExprNode& node) : VExpr(node) {

    Field field;

    switch (_data_type->get_primitive_type()) {

    case TYPE_BIGINT: {

        field = Field::create_field<TYPE_BIGINT>(Int64(node.info_func.int_value));

        break;

    }

    case TYPE_STRING:

    case TYPE_CHAR:

    case TYPE_VARCHAR: {

        field = Field::create_field<TYPE_STRING>(node.info_func.str_value);

        break;

    }

    default: {

        DCHECK(false) << "Invalid type: " << _data_type->get_name();

        break;

    }

    }

    this->_column_ptr = _data_type->create_column_const(1, field);

}

Status VInfoFunc::execute_column(VExprContext* context, const Block* block, Selector* selector,

                                 size_t count, ColumnPtr& result_column) const {

    result_column = _column_ptr->clone_resized(count);

    DCHECK_EQ(result_column->size(), count);

    return Status::OK();

}

#include "common/compile_check_end.h"

} // namespace doris