fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
|
|
*/
|
|
/*
|
|
* Modified by ScyllaDB
|
|
* Copyright (C) 2015-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "abstract_function_selector.hh"
|
|
#include "cql3/functions/scalar_function.hh"
|
|
#include "cql_serialization_format.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
namespace selection {
|
|
|
|
class scalar_function_selector : public abstract_function_selector_for<functions::scalar_function> {
|
|
public:
|
|
virtual bool is_aggregate() const override {
|
|
// We cannot just return true as it is possible to have a scalar function wrapping an aggregation function
|
|
if (_arg_selectors.empty()) {
|
|
return false;
|
|
}
|
|
|
|
return _arg_selectors[0]->is_aggregate();
|
|
}
|
|
|
|
virtual void add_input(cql_serialization_format sf, result_set_builder& rs) override {
|
|
size_t m = _arg_selectors.size();
|
|
for (size_t i = 0; i < m; ++i) {
|
|
auto&& s = _arg_selectors[i];
|
|
s->add_input(sf, rs);
|
|
}
|
|
}
|
|
|
|
virtual void reset() override {
|
|
}
|
|
|
|
virtual bytes_opt get_output(cql_serialization_format sf) override {
|
|
size_t m = _arg_selectors.size();
|
|
for (size_t i = 0; i < m; ++i) {
|
|
auto&& s = _arg_selectors[i];
|
|
_args[i] = s->get_output(sf);
|
|
s->reset();
|
|
}
|
|
return fun()->execute(sf, _args);
|
|
}
|
|
|
|
virtual bool requires_thread() const override;
|
|
|
|
scalar_function_selector(shared_ptr<functions::function> fun, std::vector<shared_ptr<selector>> arg_selectors)
|
|
: abstract_function_selector_for<functions::scalar_function>(
|
|
dynamic_pointer_cast<functions::scalar_function>(std::move(fun)), std::move(arg_selectors)) {
|
|
}
|
|
};
|
|
|
|
}
|
|
}
|