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doris/be/src/pipeline/exec/schema_scan_operator.cpp

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// 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 "schema_scan_operator.h"
#include <gen_cpp/FrontendService_types.h>
#include <memory>
#include "pipeline/exec/operator.h"
#include "util/runtime_profile.h"
#include "vec/data_types/data_type_factory.hpp"
#include "vec/exec/vschema_scan_node.h"
namespace doris {
class RuntimeState;
} // namespace doris
namespace doris::pipeline {
OPERATOR_CODE_GENERATOR(SchemaScanOperator, SourceOperator)
Status SchemaScanOperator::open(RuntimeState* state) {
return _node->open(state);
}
Status SchemaScanOperator::close(RuntimeState* state) {
RETURN_IF_ERROR(SourceOperator::close(state));
static_cast<void>(_node->close(state));
return Status::OK();
}
Status SchemaScanLocalState::init(RuntimeState* state, LocalStateInfo& info) {
RETURN_IF_ERROR(PipelineXLocalState<>::init(state, info));
SCOPED_TIMER(exec_time_counter());
SCOPED_TIMER(_open_timer);
auto& p = _parent->cast<SchemaScanOperatorX>();
_scanner_param.common_param = p._common_scanner_param;
// init schema scanner profile
_scanner_param.profile.reset(new RuntimeProfile("SchemaScanner"));
profile()->add_child(_scanner_param.profile.get(), true, nullptr);
// get src tuple desc
const SchemaTableDescriptor* schema_table =
static_cast<const SchemaTableDescriptor*>(p._dest_tuple_desc->table_desc());
// new one scanner
_schema_scanner = SchemaScanner::create(schema_table->schema_table_type());
if (nullptr == _schema_scanner) {
return Status::InternalError("schema scanner get nullptr pointer.");
}
return _schema_scanner->init(&_scanner_param, state->obj_pool());
}
Status SchemaScanLocalState::open(RuntimeState* state) {
return _schema_scanner->start(state);
}
SchemaScanOperatorX::SchemaScanOperatorX(ObjectPool* pool, const TPlanNode& tnode, int operator_id,
const DescriptorTbl& descs)
: Base(pool, tnode, operator_id, descs),
_table_name(tnode.schema_scan_node.table_name),
_common_scanner_param(new SchemaScannerCommonParam()),
_tuple_id(tnode.schema_scan_node.tuple_id),
_dest_tuple_desc(nullptr),
_tuple_idx(0),
_slot_num(0) {}
Status SchemaScanOperatorX::init(const TPlanNode& tnode, RuntimeState* state) {
RETURN_IF_ERROR(Base::init(tnode, state));
if (tnode.schema_scan_node.__isset.db) {
_common_scanner_param->db =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.db));
}
if (tnode.schema_scan_node.__isset.table) {
_common_scanner_param->table =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.table));
}
if (tnode.schema_scan_node.__isset.wild) {
_common_scanner_param->wild =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.wild));
}
if (tnode.schema_scan_node.__isset.current_user_ident) {
_common_scanner_param->current_user_ident = state->obj_pool()->add(
new TUserIdentity(tnode.schema_scan_node.current_user_ident));
} else {
if (tnode.schema_scan_node.__isset.user) {
_common_scanner_param->user =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.user));
}
if (tnode.schema_scan_node.__isset.user_ip) {
_common_scanner_param->user_ip =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.user_ip));
}
}
if (tnode.schema_scan_node.__isset.ip) {
_common_scanner_param->ip =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.ip));
}
if (tnode.schema_scan_node.__isset.port) {
_common_scanner_param->port = tnode.schema_scan_node.port;
}
if (tnode.schema_scan_node.__isset.thread_id) {
_common_scanner_param->thread_id = tnode.schema_scan_node.thread_id;
}
if (tnode.schema_scan_node.__isset.catalog) {
_common_scanner_param->catalog =
state->obj_pool()->add(new std::string(tnode.schema_scan_node.catalog));
}
return Status::OK();
}
Status SchemaScanOperatorX::open(RuntimeState* state) {
RETURN_IF_ERROR(Base::open(state));
if (_common_scanner_param->user) {
TSetSessionParams param;
param.__set_user(*_common_scanner_param->user);
//TStatus t_status;
//RETURN_IF_ERROR(SchemaJniHelper::set_session(param, &t_status));
//RETURN_IF_ERROR(Status(t_status));
}
return Status::OK();
}
Status SchemaScanOperatorX::prepare(RuntimeState* state) {
RETURN_IF_ERROR(Base::prepare(state));
// get dest tuple desc
_dest_tuple_desc = state->desc_tbl().get_tuple_descriptor(_tuple_id);
if (nullptr == _dest_tuple_desc) {
return Status::InternalError("Failed to get tuple descriptor.");
}
_slot_num = _dest_tuple_desc->slots().size();
// get src tuple desc
const SchemaTableDescriptor* schema_table =
static_cast<const SchemaTableDescriptor*>(_dest_tuple_desc->table_desc());
if (nullptr == schema_table) {
return Status::InternalError("Failed to get schema table descriptor.");
}
// new one scanner
_schema_scanner = SchemaScanner::create(schema_table->schema_table_type());
if (nullptr == _schema_scanner) {
return Status::InternalError("schema scanner get nullptr pointer.");
}
const std::vector<SchemaScanner::ColumnDesc>& columns_desc(_schema_scanner->get_column_desc());
// if src columns size is zero, it's the dummy slots.
if (0 == columns_desc.size()) {
_slot_num = 0;
}
// check if type is ok.
for (int i = 0; i < _slot_num; ++i) {
int j = 0;
for (; j < columns_desc.size(); ++j) {
if (boost::iequals(_dest_tuple_desc->slots()[i]->col_name(), columns_desc[j].name)) {
break;
}
}
if (j >= columns_desc.size()) {
LOG(WARNING) << "no match column for this column("
<< _dest_tuple_desc->slots()[i]->col_name() << ")";
return Status::InternalError("no match column for this column.");
}
if (columns_desc[j].type != _dest_tuple_desc->slots()[i]->type().type) {
LOG(WARNING) << "schema not match. input is " << columns_desc[j].name << "("
<< columns_desc[j].type << ") and output is "
<< _dest_tuple_desc->slots()[i]->col_name() << "("
<< _dest_tuple_desc->slots()[i]->type() << ")";
return Status::InternalError("schema not match.");
}
}
_tuple_idx = 0;
return Status::OK();
}
Status SchemaScanOperatorX::get_block(RuntimeState* state, vectorized::Block* block,
SourceState& source_state) {
auto& local_state = get_local_state(state);
SCOPED_TIMER(local_state.exec_time_counter());
RETURN_IF_CANCELLED(state);
bool schema_eos = false;
const std::vector<SchemaScanner::ColumnDesc>& columns_desc(
local_state._schema_scanner->get_column_desc());
do {
block->clear();
for (int i = 0; i < _slot_num; ++i) {
auto dest_slot_desc = _dest_tuple_desc->slots()[i];
block->insert(vectorized::ColumnWithTypeAndName(
dest_slot_desc->get_empty_mutable_column(), dest_slot_desc->get_data_type_ptr(),
dest_slot_desc->col_name()));
}
// src block columns desc is filled by schema_scanner->get_column_desc.
vectorized::Block src_block;
for (int i = 0; i < columns_desc.size(); ++i) {
TypeDescriptor descriptor(columns_desc[i].type);
auto data_type =
vectorized::DataTypeFactory::instance().create_data_type(descriptor, true);
src_block.insert(vectorized::ColumnWithTypeAndName(data_type->create_column(),
data_type, columns_desc[i].name));
}
while (true) {
RETURN_IF_CANCELLED(state);
// get all slots from schema table.
RETURN_IF_ERROR(local_state._schema_scanner->get_next_block(&src_block, &schema_eos));
if (schema_eos) {
source_state = SourceState::FINISHED;
break;
}
if (src_block.rows() >= state->batch_size()) {
break;
}
}
if (src_block.rows()) {
// block->check_number_of_rows();
for (int i = 0; i < _slot_num; ++i) {
auto dest_slot_desc = _dest_tuple_desc->slots()[i];
vectorized::MutableColumnPtr column_ptr =
std::move(*block->get_by_position(i).column).mutate();
column_ptr->insert_range_from(
*src_block.get_by_name(dest_slot_desc->col_name()).column, 0,
src_block.rows());
}
RETURN_IF_ERROR(vectorized::VExprContext::filter_block(
local_state._conjuncts, block, _dest_tuple_desc->slots().size()));
src_block.clear();
}
} while (block->rows() == 0 && source_state != SourceState::FINISHED);
local_state.reached_limit(block, source_state);
return Status::OK();
}
} // namespace doris::pipeline