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https://github.com/scylladb/scylladb.git
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636e2877e2
Use collection_mutation_writer instead. Add to_managed_bytes() to cql3::raw_value to help avoid some copies. A special note for sstables/kl/reader.cc: this conversion is not straighforward, so we accumulate a list of cells and feed to the writer at the end. This is sub-optimal but this code is rarely used, best to be conservative.
108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
/*
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* Copyright (C) 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 "utils/assert.hh"
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#include "sets.hh"
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#include "types/set.hh"
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#include "cql3/expr/evaluate.hh"
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#include "cql3/expr/expr-utils.hh"
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#include "mutation/mutation.hh"
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namespace cql3 {
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void
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sets::setter::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params) {
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cql3::raw_value value = expr::evaluate(*_e, params._options);
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execute(m, row_key, params, column, std::move(value));
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}
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void
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sets::setter::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params, const column_definition& column, const cql3::raw_value& value) {
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if (column.type->is_multi_cell()) {
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// Delete all cells first, then add new ones
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m.set_cell(row_key, column, collection_mutation_writer(params.make_tombstone_just_before()).finish());
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}
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adder::do_add(m, row_key, params, value, column);
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}
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void
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sets::adder::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params) {
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const cql3::raw_value value = expr::evaluate(*_e, params._options);
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throwing_assert(column.type->is_multi_cell()); // "Attempted to add items to a frozen set";
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do_add(m, row_key, params, value, column);
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}
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void
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sets::adder::do_add(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params,
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const cql3::raw_value& value, const column_definition& column) {
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auto& set_type = dynamic_cast<const set_type_impl&>(column.type->without_reversed());
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if (column.type->is_multi_cell()) {
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if (value.is_null()) {
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return;
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}
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utils::chunked_vector<managed_bytes_opt> set_elements = expr::get_set_elements(value);
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if (set_elements.empty()) {
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return;
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}
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collection_mutation_writer mut(tombstone{});
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for (auto&& e : set_elements) {
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if (!e) {
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throw exceptions::invalid_request_exception("Invalid NULL value in set");
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}
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mut.push_back(managed_bytes_view(*e), params.make_cell(*set_type.value_comparator(), bytes_view(), atomic_cell::collection_member::yes));
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}
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m.set_cell(row_key, column, std::move(mut).finish());
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} else if (!value.is_null()) {
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// for frozen sets, we're overwriting the whole cell
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value.view().with_value([&] (const FragmentedView auto& v) {
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set_type.validate_for_storage(v);
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});
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m.set_cell(row_key, column, params.make_cell(*column.type, value.view()));
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} else {
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m.set_cell(row_key, column, params.make_dead_cell());
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}
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}
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void
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sets::discarder::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params) {
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throwing_assert(column.type->is_multi_cell()); // "Attempted to remove items from a frozen set";
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cql3::raw_value svalue = expr::evaluate(*_e, params._options);
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if (svalue.is_null()) {
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return;
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}
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collection_mutation_writer mut(tombstone{});
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utils::chunked_vector<managed_bytes_opt> set_elements = expr::get_set_elements(svalue);
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for (auto&& e : set_elements) {
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if (!e) {
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throw exceptions::invalid_request_exception("Invalid NULL value in set");
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}
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mut.push_back(managed_bytes_view(*e), params.make_dead_cell());
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}
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m.set_cell(row_key, column, std::move(mut).finish());
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}
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void sets::element_discarder::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params)
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{
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throwing_assert(column.type->is_multi_cell() && "Attempted to remove items from a frozen set");
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cql3::raw_value elt = expr::evaluate(*_e, params._options);
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if (elt.is_null()) {
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throw exceptions::invalid_request_exception("Invalid null set element");
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}
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collection_mutation_writer mut(tombstone{});
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mut.push_back(elt.to_managed_bytes_view(), params.make_dead_cell());
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m.set_cell(row_key, column, std::move(mut).finish());
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}
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}
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