fc72a64c67
With this it is possible to create user defined functions and aggregates and they are saved to disk and the schema change is propagated. It is just not possible to call them yet. Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
52 lines
2.2 KiB
C++
52 lines
2.2 KiB
C++
/*
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* Copyright (C) 2019 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "cql3/statements/function_statement.hh"
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#include "cql3/functions/user_function.hh"
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namespace cql3 {
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namespace statements {
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class create_function_statement final : public create_function_statement_base {
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virtual std::unique_ptr<prepared> prepare(database& db, cql_stats& stats) override;
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virtual future<shared_ptr<cql_transport::event::schema_change>> announce_migration(
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service::storage_proxy& proxy, bool is_local_only) override;
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virtual void create(service::storage_proxy& proxy, functions::function* old) override;
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sstring _language;
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sstring _body;
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std::vector<shared_ptr<column_identifier>> _arg_names;
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shared_ptr<cql3_type::raw> _return_type;
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bool _called_on_null_input;
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// To support "IF NOT EXISTS" we create the function during the verify stage and use it in announce_migration. In
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// this case it is possible that there is no error but no function is created. We could duplicate some logic in
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// announce_migration or have a _should_create boolean, but creating the function early is probably the simplest.
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shared_ptr<functions::user_function> _func{};
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public:
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create_function_statement(functions::function_name name, sstring language, sstring body,
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std::vector<shared_ptr<column_identifier>> arg_names, std::vector<shared_ptr<cql3_type::raw>> arg_types,
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shared_ptr<cql3_type::raw> return_type, bool called_on_null_input, bool or_replace, bool if_not_exists);
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};
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}
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}
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