375c1bf5c0
This patch supports utf8mb4 for mysql external table. if someone needs a mysql external table with utf8mb4 charset, but only support charset utf8 right now. When create mysql external table, it can add an optional propertiy "charset" which can set character fom mysql connection, default value is "utf8". You can set "utf8mb4" instead of "utf8" when you need.
91 lines
3.1 KiB
C++
91 lines
3.1 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 "runtime/mysql_table_sink.h"
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#include <sstream>
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#include "exprs/expr.h"
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#include "runtime/mem_tracker.h"
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#include "runtime/runtime_state.h"
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#include "util/debug_util.h"
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#include "util/runtime_profile.h"
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namespace doris {
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MysqlTableSink::MysqlTableSink(ObjectPool* pool, const RowDescriptor& row_desc,
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const std::vector<TExpr>& t_exprs)
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: _pool(pool),
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_row_desc(row_desc),
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_t_output_expr(t_exprs),
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_mem_tracker(MemTracker::create_tracker(-1, "MysqlTableSink")) {
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_name = "MysqlTableSink";
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}
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MysqlTableSink::~MysqlTableSink() {}
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Status MysqlTableSink::init(const TDataSink& t_sink) {
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RETURN_IF_ERROR(DataSink::init(t_sink));
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const TMysqlTableSink& t_mysql_sink = t_sink.mysql_table_sink;
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_conn_info.host = t_mysql_sink.host;
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_conn_info.port = t_mysql_sink.port;
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_conn_info.user = t_mysql_sink.user;
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_conn_info.passwd = t_mysql_sink.passwd;
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_conn_info.db = t_mysql_sink.db;
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_mysql_tbl = t_mysql_sink.table;
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_conn_info.charset = t_mysql_sink.charset;
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// From the thrift expressions create the real exprs.
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RETURN_IF_ERROR(Expr::create_expr_trees(_pool, _t_output_expr, &_output_expr_ctxs));
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return Status::OK();
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}
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Status MysqlTableSink::prepare(RuntimeState* state) {
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RETURN_IF_ERROR(DataSink::prepare(state));
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// Prepare the exprs to run.
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RETURN_IF_ERROR(Expr::prepare(_output_expr_ctxs, state, _row_desc, _mem_tracker));
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std::stringstream title;
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title << "MysqlTableSink (frag_id=" << state->fragment_instance_id() << ")";
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// create profile
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_profile = state->obj_pool()->add(new RuntimeProfile(title.str()));
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return Status::OK();
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}
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Status MysqlTableSink::open(RuntimeState* state) {
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// Prepare the exprs to run.
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RETURN_IF_ERROR(Expr::open(_output_expr_ctxs, state));
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// create writer
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_writer = state->obj_pool()->add(new MysqlTableWriter(_output_expr_ctxs));
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RETURN_IF_ERROR(_writer->open(_conn_info, _mysql_tbl));
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return Status::OK();
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}
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Status MysqlTableSink::send(RuntimeState* state, RowBatch* batch) {
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return _writer->append(batch);
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}
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Status MysqlTableSink::close(RuntimeState* state, Status exec_status) {
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if (_closed) {
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return Status::OK();
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}
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Expr::close(_output_expr_ctxs, state);
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return DataSink::close(state, exec_status);
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}
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} // namespace doris
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