Files
doris/be/src/vec/functions/array/function_array_utils.cpp
xy720 3744321f01 [feature-wip](array-type) add function array_union/array_except/array_intersect (#10781)
Add array_union/array_except/array_intersect function.
2022-07-22 13:50:13 +08:00

72 lines
2.9 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/functions/array/function_array_utils.h"
namespace doris::vectorized {
bool extract_column_array_info(const IColumn& src, ColumnArrayExecutionData& data) {
const IColumn* array_col = &src;
// extract array nullable info
if (src.is_nullable()) {
const auto& null_col = reinterpret_cast<const ColumnNullable&>(src);
data.array_nullmap_data = null_col.get_null_map_data().data();
array_col = null_col.get_nested_column_ptr().get();
}
// check and get array column
data.array_col = check_and_get_column<ColumnArray>(array_col);
if (!data.array_col) {
return false;
}
// extract array offsets and nested column
data.offsets_ptr = &data.array_col->get_offsets();
data.nested_col = &data.array_col->get_data();
// extract nested column is nullable
if (data.nested_col->is_nullable()) {
const auto& nested_null_col = reinterpret_cast<const ColumnNullable&>(*data.nested_col);
data.nested_nullmap_data = nested_null_col.get_null_map_data().data();
data.nested_col = nested_null_col.get_nested_column_ptr().get();
}
return true;
}
ColumnArrayMutableData create_mutable_data(const IColumn* nested_col, bool is_nullable) {
ColumnArrayMutableData dst;
if (is_nullable) {
dst.array_nested_col =
ColumnNullable::create(nested_col->clone_empty(), ColumnUInt8::create());
auto* nullable_col = reinterpret_cast<ColumnNullable*>(dst.array_nested_col.get());
dst.nested_nullmap_data = &nullable_col->get_null_map_data();
dst.nested_col = nullable_col->get_nested_column_ptr().get();
} else {
dst.array_nested_col = nested_col->clone_empty();
dst.nested_col = dst.array_nested_col.get();
}
dst.offsets_col = ColumnArray::ColumnOffsets::create();
dst.offsets_ptr =
&reinterpret_cast<ColumnArray::ColumnOffsets*>(dst.offsets_col.get())->get_data();
return dst;
}
MutableColumnPtr assemble_column_array(ColumnArrayMutableData& data) {
return ColumnArray::create(std::move(data.array_nested_col), std::move(data.offsets_col));
}
} // namespace doris::vectorized