82df8a9905
We decided to extend `cql_statement` hierarchy with `strongly_consistent_modification_statement` and `strongly_consistent_select_statement`. Statements operating on system.broadcast_kv_store will be compiled to these new subclasses if BROADCAST_TABLES flag is enabled. If the query is executed on a shard other than 0 it's bounced to that shard.
85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
/*
|
|
* Copyright (C) 2015-present ScyllaDB
|
|
*
|
|
* Modified by ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "cql3/statements/modification_statement.hh"
|
|
#include "cql3/attributes.hh"
|
|
|
|
#include "data_dictionary/data_dictionary.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
namespace statements {
|
|
|
|
/**
|
|
* An <code>UPDATE</code> statement parsed from a CQL query statement.
|
|
*/
|
|
class update_statement : public modification_statement {
|
|
public:
|
|
#if 0
|
|
private static final Constants.Value EMPTY = new Constants.Value(ByteBufferUtil.EMPTY_BYTE_BUFFER);
|
|
#endif
|
|
|
|
update_statement(
|
|
statement_type type,
|
|
uint32_t bound_terms,
|
|
schema_ptr s,
|
|
std::unique_ptr<attributes> attrs,
|
|
cql_stats& stats);
|
|
private:
|
|
virtual bool require_full_clustering_key() const override;
|
|
|
|
virtual bool allow_clustering_key_slices() const override;
|
|
|
|
virtual void add_update_for_key(mutation& m, const query::clustering_range& range, const update_parameters& params, const json_cache_opt& json_cache) const override;
|
|
|
|
virtual void execute_operations_for_key(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params, const json_cache_opt& json_cache) const;
|
|
|
|
public:
|
|
virtual ::shared_ptr<strongly_consistent_modification_statement> prepare_for_broadcast_tables() const override;
|
|
};
|
|
|
|
/*
|
|
* Update statement specification that has specifically one bound name - a JSON string.
|
|
* Overridden add_update_for_key uses this parsed JSON to look up values for columns.
|
|
*/
|
|
class insert_prepared_json_statement : public update_statement {
|
|
expr::expression _value;
|
|
bool _default_unset;
|
|
public:
|
|
insert_prepared_json_statement(
|
|
uint32_t bound_terms,
|
|
schema_ptr s,
|
|
std::unique_ptr<attributes> attrs,
|
|
cql_stats& stats,
|
|
expr::expression v, bool default_unset)
|
|
: update_statement(statement_type::INSERT, bound_terms, s, std::move(attrs), stats)
|
|
, _value(std::move(v))
|
|
, _default_unset(default_unset) {
|
|
_restrictions = restrictions::statement_restrictions(s, false);
|
|
}
|
|
private:
|
|
virtual void execute_operations_for_key(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params, const json_cache_opt& json_cache) const override;
|
|
|
|
virtual dht::partition_range_vector build_partition_keys(const query_options& options, const json_cache_opt& json_cache) const override;
|
|
|
|
virtual query::clustering_row_ranges create_clustering_ranges(const query_options& options, const json_cache_opt& json_cache) const override;
|
|
|
|
json_cache_opt maybe_prepare_json_cache(const query_options& options) const override;
|
|
|
|
void execute_set_value(mutation& m, const clustering_key_prefix& prefix, const update_parameters&
|
|
params, const column_definition& column, const bytes_opt& value) const;
|
|
};
|
|
|
|
}
|
|
|
|
}
|