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https://github.com/scylladb/scylladb.git
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6c8b5fc09d
Switches system/schema_* for system_schema/*, updates schema/schema builder and uses to hold/expect v3 style info (i.e. types & dropped).
81 lines
3.1 KiB
C++
81 lines
3.1 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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#include "schema_mutations.hh"
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#include "canonical_mutation.hh"
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#include "db/schema_tables.hh"
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#include "md5_hasher.hh"
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schema_mutations::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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: _columnfamilies(columnfamilies.to_mutation(is_view ? db::schema_tables::views() : db::schema_tables::tables()))
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, _columns(columns.to_mutation(db::schema_tables::columns()))
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, _indices(indices ? stdx::optional<mutation>{indices.value().to_mutation(db::schema_tables::indexes())} : stdx::nullopt)
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, _dropped_columns(dropped_columns ? stdx::optional<mutation>{dropped_columns.value().to_mutation(db::schema_tables::dropped_columns())} : stdx::nullopt)
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{}
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void schema_mutations::copy_to(std::vector<mutation>& dst) const {
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dst.push_back(_columnfamilies);
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dst.push_back(_columns);
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if (_indices) {
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dst.push_back(_indices.value());
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}
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if (_dropped_columns) {
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dst.push_back(_dropped_columns.value());
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}
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}
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table_schema_version schema_mutations::digest() const {
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md5_hasher h;
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db::schema_tables::feed_hash_for_schema_digest(h, _columnfamilies);
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db::schema_tables::feed_hash_for_schema_digest(h, _columns);
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if (_indices && !_indices.value().partition().empty()) {
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db::schema_tables::feed_hash_for_schema_digest(h, _indices.value());
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}
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if (_dropped_columns && !_dropped_columns.value().partition().empty()) {
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db::schema_tables::feed_hash_for_schema_digest(h, _dropped_columns.value());
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}
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return utils::UUID_gen::get_name_UUID(h.finalize());
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}
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bool schema_mutations::operator==(const schema_mutations& other) const {
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return _columnfamilies == other._columnfamilies
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&& _columns == other._columns
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&& _indices == other._indices
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&& _dropped_columns == other._dropped_columns
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;
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}
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bool schema_mutations::operator!=(const schema_mutations& other) const {
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return !(*this == other);
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}
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bool schema_mutations::live() const {
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return _columnfamilies.live_row_count() > 0 || _columns.live_row_count() > 0;
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}
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bool schema_mutations::is_view() const {
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return _columnfamilies.schema() == db::schema_tables::views();
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}
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