7ffe88b579
Remove the last element from array.
```
mysql> select array_popback(['test', NULL, 'value']);
+-----------------------------------------------------+
| array_popback(ARRAY('test', NULL, 'value')) |
+-----------------------------------------------------+
| [test, NULL] |
+-----------------------------------------------------+
```
63 lines
2.1 KiB
C++
63 lines
2.1 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 "vec/columns/column_array.h"
|
|
#include "vec/columns/column_nullable.h"
|
|
#include "vec/data_types/data_type_array.h"
|
|
|
|
namespace doris::vectorized {
|
|
|
|
struct ColumnArrayExecutionData {
|
|
public:
|
|
void reset() {
|
|
array_nullmap_data = nullptr;
|
|
array_col = nullptr;
|
|
offsets_ptr = nullptr;
|
|
nested_nullmap_data = nullptr;
|
|
nested_col = nullptr;
|
|
}
|
|
|
|
public:
|
|
const UInt8* array_nullmap_data = nullptr;
|
|
const ColumnArray* array_col = nullptr;
|
|
const ColumnArray::Offsets64* offsets_ptr = nullptr;
|
|
const UInt8* nested_nullmap_data = nullptr;
|
|
const IColumn* nested_col = nullptr;
|
|
};
|
|
|
|
struct ColumnArrayMutableData {
|
|
public:
|
|
MutableColumnPtr array_nested_col = nullptr;
|
|
ColumnUInt8::Container* nested_nullmap_data = nullptr;
|
|
MutableColumnPtr offsets_col = nullptr;
|
|
ColumnArray::Offsets64* offsets_ptr = nullptr;
|
|
IColumn* nested_col = nullptr;
|
|
};
|
|
|
|
bool extract_column_array_info(const IColumn& src, ColumnArrayExecutionData& data);
|
|
|
|
ColumnArrayMutableData create_mutable_data(const IColumn* nested_col, bool is_nullable);
|
|
|
|
MutableColumnPtr assemble_column_array(ColumnArrayMutableData& data);
|
|
|
|
// array[offset:length]
|
|
void slice_array(ColumnArrayMutableData& dst, ColumnArrayExecutionData& src,
|
|
const IColumn& offset_column, const IColumn* length_column);
|
|
|
|
} // namespace doris::vectorized
|