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2f28f68e84
When a query requests a partition slice but doesn't limit the number of partitions, require that it also says ALLOW FILTERING. Although do_filter() isn't invoked for such queries, the performance can still be unexpectedly slow, and we want to signal that to the user by demanding they explicitly say ALLOW FILTERING. Because we now reject queries that worked fine before, existing applications can break. Therefore, the behavior is controlled by a flag currently defaulting to off. We will default to "on" in the next Scylla version. Fixes #7608; see comments there for justification. Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright (C) 2016-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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* 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 <seastar/core/shared_ptr.hh>
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#include <seastar/core/weak_ptr.hh>
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#include <seastar/core/checked_ptr.hh>
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#include <optional>
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#include <vector>
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#include "exceptions/exceptions.hh"
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namespace cql3 {
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class prepare_context;
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class column_specification;
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class cql_statement;
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namespace statements {
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struct invalidated_prepared_usage_attempt {
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void operator()() const {
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throw exceptions::invalidated_prepared_usage_attempt_exception();
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}
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};
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class prepared_statement : public seastar::weakly_referencable<prepared_statement> {
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public:
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typedef seastar::checked_ptr<seastar::weak_ptr<prepared_statement>> checked_weak_ptr;
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public:
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const seastar::shared_ptr<cql_statement> statement;
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const std::vector<seastar::lw_shared_ptr<column_specification>> bound_names;
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std::vector<uint16_t> partition_key_bind_indices;
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std::vector<sstring> warnings;
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prepared_statement(seastar::shared_ptr<cql_statement> statement_, std::vector<seastar::lw_shared_ptr<column_specification>> bound_names_,
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std::vector<uint16_t> partition_key_bind_indices, std::vector<sstring> warnings = {});
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prepared_statement(seastar::shared_ptr<cql_statement> statement_, const prepare_context& ctx, const std::vector<uint16_t>& partition_key_bind_indices,
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std::vector<sstring> warnings = {});
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prepared_statement(seastar::shared_ptr<cql_statement> statement_, prepare_context&& ctx, std::vector<uint16_t>&& partition_key_bind_indices);
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prepared_statement(seastar::shared_ptr<cql_statement>&& statement_);
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checked_weak_ptr checked_weak_from_this() {
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return checked_weak_ptr(this->weak_from_this());
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}
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};
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}
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}
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