a6ec4aa547
In preparation for splitting raw and prepared variants of subclasses of schema_altering_statement, remove schema_altering_statment::prepare(). All subclasses already implement it themselves (by creating a new instance).
122 lines
4.2 KiB
C++
122 lines
4.2 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2015 ScyllaDB
|
|
*
|
|
* Modified by ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* This file is part of Scylla.
|
|
*
|
|
* Scylla is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Scylla is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "cql3/statements/schema_altering_statement.hh"
|
|
|
|
#include "transport/messages/result_message.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
namespace statements {
|
|
|
|
schema_altering_statement::schema_altering_statement()
|
|
: cf_statement{::shared_ptr<cf_name>{}}
|
|
, _is_column_family_level{false}
|
|
{
|
|
}
|
|
|
|
schema_altering_statement::schema_altering_statement(::shared_ptr<cf_name> name)
|
|
: cf_statement{std::move(name)}
|
|
, _is_column_family_level{true}
|
|
{
|
|
}
|
|
|
|
bool schema_altering_statement::uses_function(const sstring& ks_name, const sstring& function_name) const
|
|
{
|
|
return cf_statement::uses_function(ks_name, function_name);
|
|
}
|
|
|
|
bool schema_altering_statement::depends_on_keyspace(const sstring& ks_name) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool schema_altering_statement::depends_on_column_family(const sstring& cf_name) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
uint32_t schema_altering_statement::get_bound_terms()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void schema_altering_statement::prepare_keyspace(const service::client_state& state)
|
|
{
|
|
if (_is_column_family_level) {
|
|
cf_statement::prepare_keyspace(state);
|
|
}
|
|
}
|
|
|
|
future<::shared_ptr<messages::result_message>>
|
|
schema_altering_statement::execute0(distributed<service::storage_proxy>& proxy, service::query_state& state, const query_options& options, bool is_local_only) {
|
|
// If an IF [NOT] EXISTS clause was used, this may not result in an actual schema change. To avoid doing
|
|
// extra work in the drivers to handle schema changes, we return an empty message in this case. (CASSANDRA-7600)
|
|
return announce_migration(proxy, is_local_only).then([this] (bool did_change_schema) {
|
|
if (!did_change_schema) {
|
|
auto result = ::make_shared<messages::result_message::void_message>();
|
|
return make_ready_future<::shared_ptr<messages::result_message>>(result);
|
|
}
|
|
auto ce = this->change_event();
|
|
::shared_ptr<messages::result_message> result;
|
|
if (!ce) {
|
|
result = ::make_shared<messages::result_message::void_message>();
|
|
} else {
|
|
result = ::make_shared<messages::result_message::schema_change>(ce);
|
|
}
|
|
return make_ready_future<::shared_ptr<messages::result_message>>(result);
|
|
});
|
|
}
|
|
|
|
future<::shared_ptr<messages::result_message>>
|
|
schema_altering_statement::execute(distributed<service::storage_proxy>& proxy, service::query_state& state, const query_options& options) {
|
|
return execute0(proxy, state, options, false);
|
|
}
|
|
|
|
future<::shared_ptr<messages::result_message>>
|
|
schema_altering_statement::execute_internal(distributed<service::storage_proxy>& proxy, service::query_state& state, const query_options& options) {
|
|
return execute0(proxy, state, options, true);
|
|
}
|
|
|
|
}
|
|
|
|
}
|