283ac7fefe
The functions which prepare schema change mutations (such as `prepare_new_column_family_announcement`) would use internally generated timestamps for these mutations. When schema changes are managed by group 0 we want to ensure that timestamps of mutations applied through Raft are monotonic. We will generate these timestamps at call sites and pass them into the `prepare_` functions. This commit prepares the APIs.
89 lines
3.7 KiB
C++
89 lines
3.7 KiB
C++
/*
|
|
* Copyright (C) 2019-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
|
*/
|
|
|
|
#include <seastar/core/coroutine.hh>
|
|
#include "cql3/statements/create_function_statement.hh"
|
|
#include "cql3/functions/functions.hh"
|
|
#include "cql3/functions/user_function.hh"
|
|
#include "prepared_statement.hh"
|
|
#include "service/migration_manager.hh"
|
|
#include "service/storage_proxy.hh"
|
|
#include "lang/lua.hh"
|
|
#include "data_dictionary/data_dictionary.hh"
|
|
#include "replica/database.hh" // for wasm
|
|
#include "cql3/query_processor.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
namespace statements {
|
|
|
|
shared_ptr<functions::function> create_function_statement::create(query_processor& qp, functions::function* old) const {
|
|
if (old && !dynamic_cast<functions::user_function*>(old)) {
|
|
throw exceptions::invalid_request_exception(format("Cannot replace '{}' which is not a user defined function", *old));
|
|
}
|
|
if (_language != "lua" && _language != "xwasm") {
|
|
throw exceptions::invalid_request_exception(format("Language '{}' is not supported", _language));
|
|
}
|
|
data_type return_type = prepare_type(qp, *_return_type);
|
|
std::vector<sstring> arg_names;
|
|
for (const auto& arg_name : _arg_names) {
|
|
arg_names.push_back(arg_name->to_string());
|
|
}
|
|
|
|
auto&& db = qp.db();
|
|
if (_language == "lua") {
|
|
auto cfg = lua::make_runtime_config(db.get_config());
|
|
functions::user_function::context ctx = functions::user_function::lua_context {
|
|
.bitcode = lua::compile(cfg, arg_names, _body),
|
|
.cfg = cfg,
|
|
};
|
|
|
|
return ::make_shared<functions::user_function>(_name, _arg_types, std::move(arg_names), _body, _language,
|
|
std::move(return_type), _called_on_null_input, std::move(ctx));
|
|
} else if (_language == "xwasm") {
|
|
// FIXME: need better way to test wasm compilation without real_database()
|
|
wasm::context ctx{db.real_database().wasm_engine(), _name.name};
|
|
try {
|
|
wasm::compile(ctx, arg_names, _body);
|
|
return ::make_shared<functions::user_function>(_name, _arg_types, std::move(arg_names), _body, _language,
|
|
std::move(return_type), _called_on_null_input, std::move(ctx));
|
|
} catch (const wasm::exception& we) {
|
|
throw exceptions::invalid_request_exception(we.what());
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
std::unique_ptr<prepared_statement> create_function_statement::prepare(data_dictionary::database db, cql_stats& stats) {
|
|
return std::make_unique<prepared_statement>(make_shared<create_function_statement>(*this));
|
|
}
|
|
|
|
future<std::pair<::shared_ptr<cql_transport::event::schema_change>, std::vector<mutation>>>
|
|
create_function_statement::prepare_schema_mutations(query_processor& qp, api::timestamp_type ts) const {
|
|
::shared_ptr<cql_transport::event::schema_change> ret;
|
|
std::vector<mutation> m;
|
|
|
|
auto func = dynamic_pointer_cast<functions::user_function>(validate_while_executing(qp));
|
|
|
|
if (func) {
|
|
m = co_await qp.get_migration_manager().prepare_new_function_announcement(func, ts);
|
|
ret = create_schema_change(*func, true);
|
|
}
|
|
|
|
co_return std::make_pair(std::move(ret), std::move(m));
|
|
}
|
|
|
|
create_function_statement::create_function_statement(functions::function_name name, sstring language, sstring body,
|
|
std::vector<shared_ptr<column_identifier>> arg_names, std::vector<shared_ptr<cql3_type::raw>> arg_types,
|
|
shared_ptr<cql3_type::raw> return_type, bool called_on_null_input, bool or_replace, bool if_not_exists)
|
|
: create_function_statement_base(std::move(name), std::move(arg_types), or_replace, if_not_exists),
|
|
_language(std::move(language)), _body(std::move(body)), _arg_names(std::move(arg_names)),
|
|
_return_type(std::move(return_type)), _called_on_null_input(called_on_null_input) {}
|
|
}
|
|
}
|