f5f7aeaa0a
We're introducing a new type wrapping properties that can be used with
materialized views. Doing that, we achieve the following things:
(1) We can keep validation logic in one place.
(2) We differentiate between properties of a regular table and
properties of a materialized view.
(3) It provides better modularization and allows for reusing the code.
(4) It gets rid of inconsistencies in the existing code, e.g.
CREATE MV using one type for properties, while ALTER MV another.
The actual end goal of this commit is to be able to reuse at least part
of the validation logic of MVs in CREATE INDEX and, when it gets added,
ALTER INDEX: we want to endow those statements with an ability to modify
the underlying materialized view without having to modify it directly.
This patch does NOT implement the whole validation logic yet. It will be
done in a following commit.
Refs scylladb/scylladb#16454
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
/*
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* Copyright 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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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.0 and Apache-2.0)
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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 "cql3/statements/view_prop_defs.hh"
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#include "data_dictionary/data_dictionary.hh"
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#include "cql3/statements/schema_altering_statement.hh"
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namespace cql3 {
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class query_processor;
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class cf_name;
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namespace statements {
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/** An <code>ALTER MATERIALIZED VIEW</code> parsed from a CQL query statement. */
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class alter_view_statement : public schema_altering_statement {
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private:
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std::optional<view_prop_defs> _properties;
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view_ptr prepare_view(data_dictionary::database db) const;
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public:
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alter_view_statement(cf_name view_name, std::optional<view_prop_defs> properties);
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virtual future<> check_access(query_processor& qp, const service::client_state& state) const override;
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future<std::tuple<::shared_ptr<cql_transport::event::schema_change>, utils::chunked_vector<mutation>, cql3::cql_warnings_vec>> prepare_schema_mutations(query_processor& qp, const query_options& options, api::timestamp_type) const override;
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virtual std::unique_ptr<prepared_statement> prepare(data_dictionary::database db, cql_stats& stats) override;
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};
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}
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}
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