zenoyang commented on code in PR #10084: URL: https://github.com/apache/doris/pull/10084#discussion_r969622110
########## be/src/vec/olap/block_aggregator.cpp: ########## @@ -0,0 +1,234 @@ +// 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. + +#include "vec/olap/block_aggregator.h" + +#include "util/simd/bits.h" +#include "vec/columns/column_nullable.h" +#include "vec/columns/columns_number.h" +#include "vec/core/types.h" +#include "vec/data_types/data_type_factory.hpp" + +namespace doris::vectorized { + +template <typename ColumnType> +inline void compare_previous(const IColumn& col, uint8_t* flags) { + if (col.is_nullable()) { + auto col_ptr = reinterpret_cast<const ColumnNullable*>(&col); + for (int i = 1; i < col_ptr->size(); ++i) { + flags[i] &= (col_ptr->compare_at(i, i - 1, col, -1) == 0); + } + } else { + auto col_ptr = reinterpret_cast<const ColumnType*>(&col); + for (int i = 1; i < col_ptr->size(); ++i) { + flags[i] &= (col_ptr->compare_at(i, i - 1, col, -1) == 0); + } + } +} + +BlockAggregator::BlockAggregator(const TabletSchema* tablet_schema, + const std::vector<uint32_t>& output_columns, + const std::vector<uint32_t>& return_columns, + const std::unordered_set<uint32_t>* null_set, const int batch_size) + : _tablet_schema(tablet_schema), + _output_columns(output_columns), + _sorted_output_columns(output_columns), + _return_columns(return_columns), + _null_set(null_set), + _batch_size(batch_size) { + _has_agg_data = false; + _do_aggregate = true; + _agg_ratio = config::block_aggregate_ratio; + _num_columns = _output_columns.size(); + _num_key_columns = 0; + + // todo(zeno) Make sure column prune done + std::sort(_sorted_output_columns.begin(), _sorted_output_columns.end()); + _output_columns_loc.resize(_num_columns); + for (int i = 0; i < _num_columns; ++i) { + for (int j = 0; j < _num_columns; ++j) { + if (_sorted_output_columns[i] == output_columns[j]) { + _output_columns_loc[i] = j; + break; + } + } + } + + for (auto index : _sorted_output_columns) { + if (_tablet_schema->column(index).is_key()) { + _num_key_columns++; + } + } + + _current_row = 0; + _source_size = 0; + _eq_previous.reserve(_batch_size); + _agg_index.reserve(_batch_size); + _agg_range.reserve(_batch_size); + + // init _key_comparator + for (int i = 0; i < _num_key_columns; ++i) { + _key_comparator.emplace_back( + _get_comparator(_tablet_schema->column(_sorted_output_columns[i]))); + } + + // init _column_aggregator + for (int i = 0; i < _num_key_columns; ++i) { + _column_aggregator.emplace_back(std::make_unique<KeyColumnAggregator>()); + } + + for (int i = _num_key_columns; i < _num_columns; ++i) { + bool is_nullable = (_null_set != nullptr && + _null_set->find(_sorted_output_columns[i]) != _null_set->end()); + auto col = _tablet_schema->column(_sorted_output_columns[i]); + auto data_type = vectorized::DataTypeFactory::instance().create_data_type(col, is_nullable); + _column_aggregator.emplace_back(std::make_unique<ValueColumnAggregator>(col, data_type)); + } + + aggregate_reset(); +} + +CompareFunc BlockAggregator::_get_comparator(const TabletColumn& col) { + switch (col.type()) { + case OLAP_FIELD_TYPE_TINYINT: + return &compare_previous<ColumnInt8>; + case OLAP_FIELD_TYPE_SMALLINT: + return &compare_previous<ColumnInt16>; + case OLAP_FIELD_TYPE_INT: + return &compare_previous<ColumnInt32>; + case OLAP_FIELD_TYPE_BIGINT: + return &compare_previous<ColumnInt64>; + case OLAP_FIELD_TYPE_LARGEINT: + return &compare_previous<ColumnInt128>; + case OLAP_FIELD_TYPE_BOOL: + return &compare_previous<ColumnUInt8>; + case OLAP_FIELD_TYPE_FLOAT: + return &compare_previous<ColumnFloat32>; + case OLAP_FIELD_TYPE_DOUBLE: + return &compare_previous<ColumnFloat64>; + case OLAP_FIELD_TYPE_DECIMAL: + return &compare_previous<ColumnDecimal<Decimal128>>; + case OLAP_FIELD_TYPE_CHAR: + case OLAP_FIELD_TYPE_VARCHAR: + case OLAP_FIELD_TYPE_STRING: + return &compare_previous<ColumnString>; + case OLAP_FIELD_TYPE_DATE: Review Comment: done -- This is an automated message from the Apache Git Service. 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