72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "vec/exprs/vinfo_func.h"
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#include <gen_cpp/Exprs_types.h>
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#include <glog/logging.h>
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#include <stddef.h>
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#include <algorithm>
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#include <iostream>
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#include <memory>
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#include "runtime/define_primitive_type.h"
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#include "runtime/types.h"
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#include "vec/core/block.h"
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#include "vec/core/field.h"
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#include "vec/core/types.h"
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#include "vec/data_types/data_type.h"
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namespace doris {
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namespace vectorized {
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class VExprContext;
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} // namespace vectorized
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} // namespace doris
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namespace doris::vectorized {
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VInfoFunc::VInfoFunc(const TExprNode& node) : VExpr(node) {
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Field field;
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switch (_type.type) {
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case TYPE_BIGINT: {
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field = Int64(node.info_func.int_value);
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break;
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}
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case TYPE_STRING:
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case TYPE_CHAR:
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case TYPE_VARCHAR: {
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field = node.info_func.str_value;
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break;
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}
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default: {
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DCHECK(false) << "Invalid type: " << _type.type;
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break;
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}
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}
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this->_column_ptr = _data_type->create_column_const(1, field);
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}
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Status VInfoFunc::execute(VExprContext* context, vectorized::Block* block, int* result_column_id) {
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// Info function should return least one row, e.g. select current_user().
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size_t row_size = std::max(block->rows(), size_t(1));
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*result_column_id = VExpr::insert_param(block, {_column_ptr, _data_type, _expr_name}, row_size);
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return Status::OK();
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}
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} // namespace doris::vectorized
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