4d125bffdf
Instead of passing a vector of boolean factors, pass a single expression (a conjunction). This prepares the way for more complex expressions, but no grammar changes are made here. The expression is stored as optional, since we'll need a way to indicate whether an IF clause was supplied or not. We could play games with boolean_factors(), but it becomes too tricky. The expressions are broken down back to boolean factors during prepare. We'll later consolidate them too.
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
/*
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* Copyright (C) 2015-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: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#pragma once
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#include "cql3/statements/raw/cf_statement.hh"
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#include "cql3/column_identifier.hh"
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#include "cql3/attributes.hh"
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#include "cql3/cql_statement.hh"
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#include <seastar/core/shared_ptr.hh>
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#include <memory>
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namespace cql3 {
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namespace statements {
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class modification_statement;
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namespace raw {
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class modification_statement : public cf_statement {
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protected:
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const std::unique_ptr<attributes::raw> _attrs;
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const std::optional<expr::expression> _conditions;
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private:
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const bool _if_not_exists;
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const bool _if_exists;
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protected:
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modification_statement(cf_name name, std::unique_ptr<attributes::raw> attrs, std::optional<expr::expression> conditions = {}, bool if_not_exists = false, bool if_exists = false);
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public:
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virtual std::unique_ptr<prepared_statement> prepare(data_dictionary::database db, cql_stats& stats) override;
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::shared_ptr<cql_statement_opt_metadata> prepare_statement(data_dictionary::database db, prepare_context& ctx, cql_stats& stats);
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::shared_ptr<cql3::statements::modification_statement> prepare(data_dictionary::database db, prepare_context& ctx, cql_stats& stats) const;
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protected:
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virtual ::shared_ptr<cql3::statements::modification_statement> prepare_internal(data_dictionary::database db, schema_ptr schema,
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prepare_context& ctx, std::unique_ptr<attributes> attrs, cql_stats& stats) const = 0;
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// Helper function used by child classes to prepare conditions for a prepared statement.
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// Must be called before processing WHERE clause, because to perform sanity checks there
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// we need to know what kinds of conditions (static, regular) the statement has.
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void prepare_conditions(data_dictionary::database db, const schema& schema, prepare_context& ctx,
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cql3::statements::modification_statement& stmt) const;
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};
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}
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}
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}
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