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.
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/*
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*/
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/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#include <seastar/core/coroutine.hh>
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#include "cql3/statements/drop_table_statement.hh"
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#include "cql3/statements/prepared_statement.hh"
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#include "cql3/query_processor.hh"
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#include "service/migration_manager.hh"
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#include "service/storage_proxy.hh"
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#include "mutation.hh"
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namespace cql3 {
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namespace statements {
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drop_table_statement::drop_table_statement(cf_name cf_name, bool if_exists)
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: schema_altering_statement{std::move(cf_name), &timeout_config::truncate_timeout}
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, _if_exists{if_exists}
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{
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}
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future<> drop_table_statement::check_access(query_processor& qp, const service::client_state& state) const
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{
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// invalid_request_exception is only thrown synchronously.
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try {
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return state.has_column_family_access(qp.db(), keyspace(), column_family(), auth::permission::DROP);
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} catch (exceptions::invalid_request_exception&) {
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if (!_if_exists) {
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throw;
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}
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return make_ready_future();
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}
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}
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void drop_table_statement::validate(query_processor&, const service::client_state& state) const
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{
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// validated in prepare_schema_mutations()
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}
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future<std::pair<::shared_ptr<cql_transport::event::schema_change>, std::vector<mutation>>>
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drop_table_statement::prepare_schema_mutations(query_processor& qp, api::timestamp_type ts) const {
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::shared_ptr<cql_transport::event::schema_change> ret;
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std::vector<mutation> m;
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try {
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m = co_await qp.get_migration_manager().prepare_column_family_drop_announcement(keyspace(), column_family(), ts);
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using namespace cql_transport;
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ret = ::make_shared<event::schema_change>(
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event::schema_change::change_type::DROPPED,
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event::schema_change::target_type::TABLE,
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this->keyspace(),
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this->column_family());
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} catch (const exceptions::configuration_exception& e) {
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if (!_if_exists) {
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co_return coroutine::exception(std::current_exception());
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}
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}
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co_return std::make_pair(std::move(ret), std::move(m));
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}
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std::unique_ptr<cql3::statements::prepared_statement>
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drop_table_statement::prepare(data_dictionary::database db, cql_stats& stats) {
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return std::make_unique<prepared_statement>(make_shared<drop_table_statement>(*this));
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}
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}
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}
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