amorynan commented on code in PR #15966: URL: https://github.com/apache/doris/pull/15966#discussion_r1089854094
########## be/src/vec/columns/column_map.cpp: ########## @@ -0,0 +1,218 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. +// This file is copied from +// https://github.com/ClickHouse/ClickHouse/blob/master/src/Columns/ColumnMap.cpp +// and modified by Doris + +#include "vec/columns/column_map.h" + +namespace doris::vectorized { + +/** A column of map values. + */ +std::string ColumnMap::get_name() const { + return "Map(" + keys->get_name() + ", " + values->get_name() + ")"; +} + +ColumnMap::ColumnMap(MutableColumnPtr&& keys, MutableColumnPtr&& values) + : keys(std::move(keys)), values(std::move(values)) { + check_size(); +} + +ColumnArray::Offsets64& ColumnMap::get_offsets() const { + const ColumnArray & column_keys = assert_cast<const ColumnArray &> (get_keys()); + // todo . did here check size ? + return const_cast<Offsets64&>(column_keys.get_offsets()); +} + +void ColumnMap::check_size() const { + const auto * key_array = typeid_cast<const ColumnArray *>(keys.get()); + const auto * value_array = typeid_cast<const ColumnArray *>(values.get()); + CHECK(key_array) << "ColumnMap keys can be created only from array"; + CHECK(value_array) << "ColumnMap values can be created only from array"; + CHECK_EQ(get_keys_ptr()->size(), get_values_ptr()->size()); +} + +// todo. here to resize every row map +MutableColumnPtr ColumnMap::clone_resized(size_t to_size) const { + auto res = ColumnMap::create(keys->clone_resized(to_size), values->clone_resized(to_size)); + return res; +} + +// to support field functions +Field ColumnMap::operator[](size_t n) const { + Map res(2); + keys->get(n, res[0]); + values->get(n, res[0]); + + return res; +} + +// here to compare to below +void ColumnMap::get(size_t n, Field & res) const { + Map map(2); + keys->get(n, map[0]); + values->get(n, map[1]); + + res = map; +} + +StringRef ColumnMap::get_data_at(size_t n) const { + LOG(FATAL) << "Method get_data_at is not supported for " << get_name(); +} + +void ColumnMap::insert_data(const char*, size_t) { + LOG(FATAL) << "Method insert_data is not supported for " << get_name(); +} + +void ColumnMap::insert(const Field& x) { + const auto& map = doris::vectorized::get<const Map&>(x); + // ({}, {}, {}) + // ([], []) + CHECK_EQ(map.size(), 2); + keys->insert(map[0]); + values->insert(map[1]); +} + +void ColumnMap::insert_default() { Review Comment: so this function should do nothing? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
