91 lines
3.3 KiB
C++
91 lines
3.3 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.
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
|
|
#include "exec/scan_node.h"
|
|
#include "exec/schema_scanner.h"
|
|
#include "gen_cpp/Descriptors_types.h"
|
|
#include "runtime/descriptors.h"
|
|
namespace doris {
|
|
|
|
class TextConverter;
|
|
class TupleDescriptor;
|
|
class RuntimeState;
|
|
class Status;
|
|
|
|
namespace vectorized {
|
|
|
|
class VSchemaScanNode : public ScanNode {
|
|
public:
|
|
VSchemaScanNode(ObjectPool* pool, const TPlanNode& tnode, const DescriptorTbl& descs);
|
|
~VSchemaScanNode();
|
|
Status prepare(RuntimeState* state) override;
|
|
Status get_next(RuntimeState* state, RowBatch* row_batch, bool* eos) override {
|
|
return Status::NotSupported("Not Implemented VSchemaScanNode Node::get_next scalar");
|
|
}
|
|
virtual Status get_next(RuntimeState* state, vectorized::Block* block, bool* eos) override;
|
|
|
|
// Prepare conjuncts, create Schema columns to slots mapping
|
|
// initialize schema_scanner
|
|
Status init(const TPlanNode& tnode, RuntimeState* state = nullptr) override;
|
|
// Start Schema scan using schema_scanner.
|
|
Status open(RuntimeState* state) override;
|
|
|
|
private:
|
|
// Close the schema_scanner, and report errors.
|
|
Status close(RuntimeState* state) override;
|
|
|
|
// this is no use in this class
|
|
Status set_scan_ranges(const std::vector<TScanRangeParams>& scan_ranges) override;
|
|
|
|
// Write debug string of this into out.
|
|
void debug_string(int indentation_level, std::stringstream* out) const override;
|
|
|
|
bool _is_init;
|
|
const std::string _table_name;
|
|
SchemaScannerParam _scanner_param;
|
|
// Tuple id resolved in prepare() to set _tuple_desc;
|
|
TupleId _tuple_id;
|
|
|
|
// Descriptor of tuples read from schema table.
|
|
const TupleDescriptor* _src_tuple_desc;
|
|
// Descriptor of dest tuples
|
|
const TupleDescriptor* _dest_tuple_desc;
|
|
// Tuple index in tuple row.
|
|
int _tuple_idx;
|
|
// slot num need to fill in and return
|
|
int _slot_num;
|
|
// Pool for allocating tuple data, including all varying-length slots.
|
|
std::unique_ptr<MemPool> _tuple_pool;
|
|
// Jni helper for scanning an schema table.
|
|
std::unique_ptr<SchemaScanner> _schema_scanner;
|
|
// Current tuple.
|
|
doris::Tuple* _src_tuple;
|
|
// Map from index in slots to column of schema table.
|
|
std::vector<int> _index_map;
|
|
|
|
Status write_slot_to_vectorized_column(void* slot, SlotDescriptor* slot_desc,
|
|
vectorized::MutableColumnPtr* col_ptr);
|
|
void project_tuple();
|
|
doris::Tuple* _src_single_tuple;
|
|
doris::Tuple* _dest_single_tuple;
|
|
};
|
|
} // namespace vectorized
|
|
} // namespace doris
|