f943d2efbf
We apply deletion of scylla_tables.version to the incoming schema mutations so that table schema version is recalculated after merge. The mutations which we read from local schema tables may not have it deleted in which case all tables would be considered as differing on the presence of the version field. Avoid this by deleting the field from old mutations as well.
121 lines
3.7 KiB
C++
121 lines
3.7 KiB
C++
/*
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* Copyright 2015 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 <vector>
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#include "mutation.hh"
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#include "schema.hh"
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#include "canonical_mutation.hh"
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// Commutative representation of table schema
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// Equality ignores tombstones.
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class schema_mutations {
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mutation _columnfamilies;
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mutation _columns;
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mutation_opt _indices;
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mutation_opt _dropped_columns;
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mutation_opt _scylla_tables;
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public:
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schema_mutations(mutation columnfamilies, mutation columns, mutation_opt indices, mutation_opt dropped_columns,
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mutation_opt scylla_tables)
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: _columnfamilies(std::move(columnfamilies))
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, _columns(std::move(columns))
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, _indices(std::move(indices))
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, _dropped_columns(std::move(dropped_columns))
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, _scylla_tables(std::move(scylla_tables))
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{ }
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schema_mutations(canonical_mutation columnfamilies,
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canonical_mutation columns,
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bool is_view,
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stdx::optional<canonical_mutation> indices,
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stdx::optional<canonical_mutation> dropped_columns,
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stdx::optional<canonical_mutation> scylla_tables);
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schema_mutations(schema_mutations&&) = default;
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schema_mutations& operator=(schema_mutations&&) = default;
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schema_mutations(const schema_mutations&) = default;
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schema_mutations& operator=(const schema_mutations&) = default;
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void copy_to(std::vector<mutation>& dst) const;
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const mutation& columnfamilies_mutation() const {
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return _columnfamilies;
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}
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const mutation& columns_mutation() const {
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return _columns;
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}
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const mutation_opt& scylla_tables() const {
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return _scylla_tables;
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}
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mutation_opt& scylla_tables() {
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return _scylla_tables;
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}
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const mutation_opt& indices_mutation() const {
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return _indices;
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}
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const mutation_opt& dropped_columns_mutation() const {
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return _dropped_columns;
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}
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canonical_mutation columnfamilies_canonical_mutation() const {
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return canonical_mutation(_columnfamilies);
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}
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canonical_mutation columns_canonical_mutation() const {
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return canonical_mutation(_columns);
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}
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stdx::optional<canonical_mutation> indices_canonical_mutation() const {
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if (_indices) {
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return canonical_mutation(*_indices);
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}
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return {};
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}
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stdx::optional<canonical_mutation> dropped_columns_canonical_mutation() const {
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if (_dropped_columns) {
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return canonical_mutation(*_dropped_columns);
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}
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return {};
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}
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stdx::optional<canonical_mutation> scylla_tables_canonical_mutation() const {
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if (_scylla_tables) {
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return canonical_mutation(*_scylla_tables);
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}
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return {};
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}
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bool is_view() const;
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table_schema_version digest() const;
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bool operator==(const schema_mutations&) const;
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bool operator!=(const schema_mutations&) const;
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// Returns true iff any mutations contain any live cells
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bool live() const;
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};
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