Files
doris/be/src/vec/sink/vodbc_table_sink.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

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3.2 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 "vec/sink/vodbc_table_sink.h"
#include <sstream>
#include "runtime/runtime_state.h"
#include "util/runtime_profile.h"
#include "vec/core/materialize_block.h"
#include "vec/sink/vtable_sink.h"
namespace doris {
namespace vectorized {
VOdbcTableSink::VOdbcTableSink(ObjectPool* pool, const RowDescriptor& row_desc,
const std::vector<TExpr>& t_exprs)
: VTableSink(pool, row_desc, t_exprs) {
_name = "VOdbcTableSink";
}
Status VOdbcTableSink::init(const TDataSink& t_sink) {
RETURN_IF_ERROR(VTableSink::init(t_sink));
const TOdbcTableSink& t_odbc_sink = t_sink.odbc_table_sink;
_odbc_param.connect_string = t_odbc_sink.connect_string;
_table_name = t_odbc_sink.table;
_use_transaction = t_odbc_sink.use_transaction;
return Status::OK();
}
Status VOdbcTableSink::open(RuntimeState* state) {
START_AND_SCOPE_SPAN(state->get_tracer(), span, "VOdbcTableSink::open");
RETURN_IF_ERROR(VTableSink::open(state));
// create writer
_writer.reset(new ODBCConnector(_odbc_param));
RETURN_IF_ERROR(_writer->open(state));
if (_use_transaction) {
RETURN_IF_ERROR(_writer->begin_trans());
}
RETURN_IF_ERROR(_writer->init_to_write(_profile));
return Status::OK();
}
Status VOdbcTableSink::send(RuntimeState* state, Block* block, bool eos) {
INIT_AND_SCOPE_SEND_SPAN(state->get_tracer(), _send_span, "VOdbcTableSink::send");
Status status = Status::OK();
if (block == nullptr || block->rows() == 0) {
return status;
}
auto output_block = vectorized::VExprContext::get_output_block_after_execute_exprs(
_output_vexpr_ctxs, *block, status);
materialize_block_inplace(output_block);
uint32_t start_send_row = 0;
uint32_t num_row_sent = 0;
while (start_send_row < output_block.rows()) {
RETURN_IF_ERROR(_writer->append(_table_name, &output_block, _output_vexpr_ctxs,
start_send_row, &num_row_sent));
start_send_row += num_row_sent;
num_row_sent = 0;
}
return Status::OK();
}
Status VOdbcTableSink::close(RuntimeState* state, Status exec_status) {
START_AND_SCOPE_SPAN(state->get_tracer(), span, "VOdbcTableSink::close");
RETURN_IF_ERROR(VTableSink::close(state, exec_status));
if (exec_status.ok() && _use_transaction) {
RETURN_IF_ERROR(_writer->finish_trans());
}
return DataSink::close(state, exec_status);
}
} // namespace vectorized
} // namespace doris