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.
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
|
|
* Copyright (C) 2019-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "cql3/statements/function_statement.hh"
|
|
#include "cql3/cql3_type.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
class query_processor;
|
|
|
|
namespace functions {
|
|
class user_function;
|
|
}
|
|
|
|
namespace statements {
|
|
|
|
class create_function_statement final : public create_function_statement_base {
|
|
virtual std::unique_ptr<prepared_statement> prepare(data_dictionary::database db, cql_stats& stats) override;
|
|
future<std::pair<::shared_ptr<cql_transport::event::schema_change>, std::vector<mutation>>> prepare_schema_mutations(query_processor& qp, api::timestamp_type) const override;
|
|
|
|
virtual shared_ptr<functions::function> create(query_processor& qp, functions::function* old) const override;
|
|
sstring _language;
|
|
sstring _body;
|
|
std::vector<shared_ptr<column_identifier>> _arg_names;
|
|
shared_ptr<cql3_type::raw> _return_type;
|
|
bool _called_on_null_input;
|
|
|
|
public:
|
|
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);
|
|
};
|
|
}
|
|
}
|