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91b251f6b4
processes_selection() checks whether a selector passes-through a column or applies some form of processing (like a case or function application). It's more sensible to do this in the prepared domain as we have more information about the expression. It doesn't really help here, but it does help the refactoring later in the series.
110 lines
3.0 KiB
C++
110 lines
3.0 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: AGPL-3.0-or-later
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*/
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#include "cql3/column_identifier.hh"
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#include "exceptions/exceptions.hh"
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#include "cql3/util.hh"
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#include "cql3/query_options.hh"
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namespace cql3 {
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column_identifier::column_identifier(sstring raw_text, bool keep_case) {
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_text = std::move(raw_text);
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if (!keep_case) {
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std::transform(_text.begin(), _text.end(), _text.begin(), ::tolower);
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}
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bytes_ = to_bytes(_text);
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}
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column_identifier::column_identifier(bytes bytes_, data_type type)
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: bytes_(std::move(bytes_))
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, _text(type->get_string(this->bytes_))
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{ }
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column_identifier::column_identifier(bytes bytes_, sstring text)
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: bytes_(std::move(bytes_))
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, _text(std::move(text))
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{ }
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bool column_identifier::operator==(const column_identifier& other) const {
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return bytes_ == other.bytes_;
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}
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const sstring& column_identifier::text() const {
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return _text;
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}
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const bytes& column_identifier::name() const {
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return bytes_;
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}
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sstring column_identifier::to_string() const {
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return _text;
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}
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sstring column_identifier::to_cql_string() const {
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return util::maybe_quote(_text);
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}
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sstring column_identifier_raw::to_cql_string() const {
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return util::maybe_quote(_text);
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}
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column_identifier_raw::column_identifier_raw(sstring raw_text, bool keep_case)
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: _raw_text{raw_text}
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, _text{raw_text}
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{
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if (!keep_case) {
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std::transform(_text.begin(), _text.end(), _text.begin(), ::tolower);
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}
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}
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::shared_ptr<column_identifier> column_identifier_raw::prepare(const schema& s) const {
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return prepare_column_identifier(s);
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}
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::shared_ptr<column_identifier>
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column_identifier_raw::prepare_column_identifier(const schema& schema) const {
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if (schema.regular_column_name_type() == utf8_type) {
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return ::make_shared<column_identifier>(_text, true);
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}
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// We have a Thrift-created table with a non-text comparator. We need to parse column names with the comparator
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// to get the correct ByteBuffer representation. However, this doesn't apply to key aliases, so we need to
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// make a special check for those and treat them normally. See CASSANDRA-8178.
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auto text_bytes = to_bytes(_text);
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auto def = schema.get_column_definition(text_bytes);
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if (def) {
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return ::make_shared<column_identifier>(std::move(text_bytes), _text);
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}
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return ::make_shared<column_identifier>(schema.regular_column_name_type()->from_string(_raw_text), _text);
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}
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bool column_identifier_raw::operator==(const column_identifier_raw& other) const {
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return _text == other._text;
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}
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const sstring& column_identifier_raw::text() const {
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return _text;
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}
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sstring column_identifier_raw::to_string() const {
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return _text;
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}
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std::ostream& operator<<(std::ostream& out, const column_identifier_raw& id) {
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return out << id._text;
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}
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}
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bool cql3::column_identifier::text_comparator::operator()(const cql3::column_identifier& c1, const cql3::column_identifier& c2) const {
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return c1.text() < c2.text();
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}
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