| // 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 "util/min-max-filter.h" |
| |
| #include "runtime/string-value.inline.h" |
| |
| using std::string; |
| |
| namespace impala { |
| |
| #define NUMERIC_MIN_MAX_FILTER_INSERT(NAME, TYPE) \ |
| void NAME##MinMaxFilter::Insert(void* val) { \ |
| if (val == nullptr) return; \ |
| TYPE* value = reinterpret_cast<TYPE*>(val); \ |
| if (*value < min_) min_ = *value; \ |
| if (*value > max_) max_ = *value; \ |
| } |
| |
| NUMERIC_MIN_MAX_FILTER_INSERT(Bool, bool); |
| NUMERIC_MIN_MAX_FILTER_INSERT(TinyInt, int8_t); |
| NUMERIC_MIN_MAX_FILTER_INSERT(SmallInt, int16_t); |
| NUMERIC_MIN_MAX_FILTER_INSERT(Int, int32_t); |
| NUMERIC_MIN_MAX_FILTER_INSERT(BigInt, int64_t); |
| NUMERIC_MIN_MAX_FILTER_INSERT(Float, float); |
| NUMERIC_MIN_MAX_FILTER_INSERT(Double, double); |
| |
| void StringMinMaxFilter::Insert(void* val) { |
| if (val == nullptr || always_true_) return; |
| const StringValue* value = reinterpret_cast<const StringValue*>(val); |
| if (always_false_) { |
| min_ = *value; |
| max_ = *value; |
| always_false_ = false; |
| } else { |
| if (*value < min_) { |
| min_ = *value; |
| min_buffer_.Clear(); |
| } else if (*value > max_) { |
| max_ = *value; |
| max_buffer_.Clear(); |
| } |
| } |
| } |
| |
| void TimestampMinMaxFilter::Insert(void* val) { |
| if (val == nullptr) return; |
| const TimestampValue* value = reinterpret_cast<const TimestampValue*>(val); |
| if (always_false_) { |
| min_ = *value; |
| max_ = *value; |
| always_false_ = false; |
| } else { |
| if (*value < min_) { |
| min_ = *value; |
| } else if (*value > max_) { |
| max_ = *value; |
| } |
| } |
| } |
| |
| #define INSERT_DECIMAL_MINMAX(SIZE) \ |
| do { \ |
| if (val == nullptr) return; \ |
| const Decimal##SIZE##Value* value##SIZE##_ = \ |
| reinterpret_cast<const Decimal##SIZE##Value*>(val); \ |
| if (always_false_) { \ |
| min##SIZE##_ = *value##SIZE##_; \ |
| max##SIZE##_ = *value##SIZE##_; \ |
| always_false_ = false; \ |
| } else { \ |
| if (*value##SIZE##_ < min##SIZE##_) { \ |
| min##SIZE##_ = *value##SIZE##_; \ |
| } else if (*value##SIZE##_ > max##SIZE##_) { \ |
| max##SIZE##_ = *value##SIZE##_; \ |
| } \ |
| } \ |
| } while (false) |
| |
| void DecimalMinMaxFilter::Insert4(void* val) { |
| INSERT_DECIMAL_MINMAX(4); |
| } |
| |
| void DecimalMinMaxFilter::Insert8(void* val) { |
| INSERT_DECIMAL_MINMAX(8); |
| } |
| |
| void DecimalMinMaxFilter::Insert16(void* val) { |
| INSERT_DECIMAL_MINMAX(16); |
| } |
| |
| } // namespace impala |