mirror of
https://github.com/scylladb/scylladb.git
synced 2026-06-08 16:03:20 +00:00
30745eeb72
query_processor uses storage_proxy to access data, and the local database object to access replicated metadata. While it seems strange that the database object is not used to access data, it is logical when you consider that a sharded<database> only contain's this node's data, not the cluster data. Take advantage of this to replace sharded<database> with a single database shard.
84 lines
3.4 KiB
C++
84 lines
3.4 KiB
C++
/*
|
|
* Copyright (C) 2017 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 "table_helper.hh"
|
|
#include "cql3/statements/create_table_statement.hh"
|
|
|
|
future<> table_helper::setup_table() const {
|
|
auto& qp = cql3::get_local_query_processor();
|
|
auto& db = qp.db();
|
|
|
|
if (db.has_schema(_keyspace, _name)) {
|
|
return make_ready_future<>();
|
|
}
|
|
|
|
::shared_ptr<cql3::statements::raw::cf_statement> parsed = static_pointer_cast<
|
|
cql3::statements::raw::cf_statement>(cql3::query_processor::parse_statement(_create_cql));
|
|
parsed->prepare_keyspace(_keyspace);
|
|
::shared_ptr<cql3::statements::create_table_statement> statement =
|
|
static_pointer_cast<cql3::statements::create_table_statement>(
|
|
parsed->prepare(db, qp.get_cql_stats())->statement);
|
|
auto schema = statement->get_cf_meta_data(db);
|
|
|
|
// Generate the CF UUID based on its KF names. This is needed to ensure that
|
|
// all Nodes that create it would create it with the same UUID and we don't
|
|
// hit the #420 issue.
|
|
auto uuid = generate_legacy_id(schema->ks_name(), schema->cf_name());
|
|
|
|
schema_builder b(schema);
|
|
b.set_uuid(uuid);
|
|
|
|
// We don't care it it fails really - this may happen due to concurrent
|
|
// "CREATE TABLE" invocation on different Nodes.
|
|
// The important thing is that it will converge eventually (some traces may
|
|
// be lost in a process but that's ok).
|
|
return service::get_local_migration_manager().announce_new_column_family(b.build(), false).discard_result().handle_exception([this] (auto ep) {});;
|
|
}
|
|
|
|
future<> table_helper::cache_table_info(service::query_state& qs) {
|
|
if (_prepared_stmt) {
|
|
return now();
|
|
} else {
|
|
// if prepared statement has been invalidated - drop cached pointers
|
|
_insert_stmt = nullptr;
|
|
}
|
|
|
|
return cql3::get_local_query_processor().prepare(_insert_cql, qs.get_client_state(), false).then([this] (shared_ptr<cql_transport::messages::result_message::prepared> msg_ptr) {
|
|
_prepared_stmt = std::move(msg_ptr->get_prepared());
|
|
shared_ptr<cql3::cql_statement> cql_stmt = _prepared_stmt->statement;
|
|
_insert_stmt = dynamic_pointer_cast<cql3::statements::modification_statement>(cql_stmt);
|
|
}).handle_exception([this] (auto eptr) {
|
|
// One of the possible causes for an error here could be the table that doesn't exist.
|
|
this->setup_table().discard_result();
|
|
|
|
// We throw the bad_column_family exception because the caller
|
|
// expects and accounts this type of errors.
|
|
try {
|
|
std::rethrow_exception(eptr);
|
|
} catch (std::exception& e) {
|
|
throw bad_column_family(_keyspace, _name, e);
|
|
} catch (...) {
|
|
throw bad_column_family(_keyspace, _name);
|
|
}
|
|
});
|
|
}
|