67 lines
2.9 KiB
C++
67 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.
|
|
#pragma once
|
|
|
|
#include "vec/functions/array/function_array_reverse.h"
|
|
#include "vec/functions/function_string.h"
|
|
|
|
namespace doris::vectorized {
|
|
|
|
class FunctionReverseCommon : public IFunction {
|
|
public:
|
|
static constexpr auto name = "reverse";
|
|
|
|
static FunctionPtr create() { return std::make_shared<FunctionReverseCommon>(); }
|
|
|
|
String get_name() const override { return name; }
|
|
|
|
size_t get_number_of_arguments() const override { return 1; }
|
|
|
|
bool get_is_injective(const Block&) override { return false; }
|
|
|
|
bool use_default_implementation_for_constants() const override { return true; }
|
|
|
|
DataTypePtr get_return_type_impl(const DataTypes& arguments) const override {
|
|
DCHECK(is_string_or_fixed_string(arguments[0]) || is_array(arguments[0]))
|
|
<< fmt::format("Illegal type {} used for argument of function {}",
|
|
arguments[0]->get_name(), get_name());
|
|
|
|
return arguments[0];
|
|
}
|
|
|
|
Status execute_impl(FunctionContext* context, Block& block, const ColumnNumbers& arguments,
|
|
size_t result, size_t input_rows_count) override {
|
|
ColumnPtr src_column =
|
|
block.get_by_position(arguments[0]).column->convert_to_full_column_if_const();
|
|
if (const ColumnString* col_string = check_and_get_column<ColumnString>(src_column.get())) {
|
|
auto col_res = ColumnString::create();
|
|
ReverseImpl::vector(col_string->get_chars(), col_string->get_offsets(),
|
|
col_res->get_chars(), col_res->get_offsets());
|
|
block.replace_by_position(result, std::move(col_res));
|
|
} else if (check_column<ColumnArray>(src_column.get())) {
|
|
return ArrayReverseImpl::_execute(block, arguments, result, input_rows_count);
|
|
} else {
|
|
return Status::RuntimeError("Illegal column {} used for argument of function {}",
|
|
block.get_by_position(arguments[0]).column->get_name(),
|
|
get_name());
|
|
}
|
|
return Status::OK();
|
|
}
|
|
};
|
|
|
|
} // namespace doris::vectorized
|