Files
doris/be/src/pipeline/exec/repeat_operator.cpp
HappenLee 12304bc0ee [Pipeline](exec) Support pipeline exec engine (#14736)
Co-authored-by: Lijia Liu <liutang123@yeah.net>
Co-authored-by: HappenLee <happenlee@hotmail.com>
Co-authored-by: Jerry Hu <mrhhsg@gmail.com>
Co-authored-by: Pxl <952130278@qq.com>
Co-authored-by: shee <13843187+qzsee@users.noreply.github.com>
Co-authored-by: Gabriel <gabrielleebuaa@gmail.com>

## Problem Summary:

### 1. Design

DSIP: https://cwiki.apache.org/confluence/display/DORIS/DSIP-027%3A+Support+Pipeline+Exec+Engine

### 2. How to use:

Set the environment variable `set enable_pipeline_engine = true; `
2022-12-02 17:11:34 +08:00

77 lines
2.8 KiB
C++

// 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 "repeat_operator.h"
#include "vec/exec/vrepeat_node.h"
namespace doris {
namespace pipeline {
RepeatOperator::RepeatOperator(RepeatOperatorBuilder* operator_builder,
vectorized::VRepeatNode* repeat_node)
: Operator(operator_builder), _repeat_node(repeat_node) {}
Status RepeatOperator::open(RuntimeState* state) {
SCOPED_TIMER(_runtime_profile->total_time_counter());
RETURN_IF_ERROR(Operator::open(state));
_child_block.reset(new vectorized::Block);
return _repeat_node->alloc_resource(state);
}
Status RepeatOperator::close(RuntimeState* state) {
_fresh_exec_timer(_repeat_node);
_repeat_node->release_resource(state);
Operator::close(state);
return Status::OK();
}
Status RepeatOperator::get_block(RuntimeState* state, vectorized::Block* block,
SourceState& source_state) {
SCOPED_TIMER(_runtime_profile->total_time_counter());
if (_repeat_node->need_more_input_data()) {
RETURN_IF_ERROR(_child->get_block(state, _child_block.get(), _child_source_state));
source_state = _child_source_state;
if (_child_block->rows() == 0) {
return Status::OK();
}
_repeat_node->push(state, _child_block.get(), source_state == SourceState::FINISHED);
}
bool eos = false;
RETURN_IF_ERROR(_repeat_node->pull(state, block, &eos));
if (eos) {
source_state = SourceState::FINISHED;
_child_block->clear_column_data();
} else if (!_repeat_node->need_more_input_data()) {
source_state = SourceState::MORE_DATA;
} else {
_child_block->clear_column_data();
}
return Status::OK();
}
RepeatOperatorBuilder::RepeatOperatorBuilder(int32_t id, vectorized::VRepeatNode* repeat_node)
: OperatorBuilder(id, "RepeatOperatorBuilder", repeat_node), _repeat_node(repeat_node) {}
OperatorPtr RepeatOperatorBuilder::build_operator() {
return std::make_shared<RepeatOperator>(this, _repeat_node);
}
} // namespace pipeline
} // namespace doris