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74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/*
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* Copyright 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.1
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*/
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#include "frozen_schema.hh"
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#include "db/schema_tables.hh"
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#include "db/view/view.hh"
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#include "view_info.hh"
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#include "mutation/canonical_mutation.hh"
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#include "schema_mutations.hh"
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#include "idl/frozen_schema.dist.hh"
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#include "idl/frozen_schema.dist.impl.hh"
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frozen_schema::frozen_schema(const schema_ptr& s)
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: _data([&s] {
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schema_mutations sm = db::schema_tables::make_schema_mutations(s, api::new_timestamp(), true);
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bytes_ostream out;
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ser::writer_of_schema<bytes_ostream> wr(out);
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std::move(wr).write_version(s->version())
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.write_mutations(sm)
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.end_schema();
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return out;
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}())
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{ }
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schema_ptr frozen_schema::unfreeze(const db::schema_ctxt& ctxt, schema_ptr cdc_schema, std::optional<db::view::base_dependent_view_info> base_info) const {
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auto in = ser::as_input_stream(_data);
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auto sv = ser::deserialize(in, std::type_identity<ser::schema_view>());
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auto sm = sv.mutations();
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if (sm.is_view()) {
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return db::schema_tables::create_view_from_mutations(ctxt, std::move(sm), ctxt.user_types(), std::move(base_info), sv.version());
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} else {
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if (base_info) {
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throw std::runtime_error("Trying to unfreeze regular table schema with base info");
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}
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return db::schema_tables::create_table_from_mutations(ctxt, std::move(sm), ctxt.user_types(), std::move(cdc_schema), sv.version());
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}
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}
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frozen_schema::frozen_schema(bytes_ostream b)
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: _data(std::move(b))
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{ }
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const bytes_ostream& frozen_schema::representation() const
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{
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return _data;
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}
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extended_frozen_schema::extended_frozen_schema(const schema_ptr& c)
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: fs(c),
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base_info([&c] -> std::optional<db::view::base_dependent_view_info> {
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if (c->is_view()) {
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return c->view_info()->base_info();
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}
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return std::nullopt;
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}()),
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frozen_cdc_schema([&c] -> std::optional<frozen_schema> {
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if (c->cdc_schema()) {
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return frozen_schema(c->cdc_schema());
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}
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return std::nullopt;
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}())
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{
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}
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schema_ptr extended_frozen_schema::unfreeze(const db::schema_ctxt& ctxt) const {
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auto cdc_schema = frozen_cdc_schema ? frozen_cdc_schema->unfreeze(ctxt, nullptr, {}) : nullptr;
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return fs.unfreeze(ctxt, std::move(cdc_schema), base_info);
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}
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