8f016d3ab2
In this change list 1. validate HLL column when loading data, if data is invalid, this row will be filtered. 2. seems as empty HLL when serializing invalid type of HLL data, with this change, all ingested data will be valid. 3. seems as empty HLL when deserializing nullptr or invalid type of HLL data. With this change, dirty data can be handled normally. 4. rename function empty_hll to hll_empty. 5. disable memtable_flush_execute_test because this will fails sometimes. When tearing down, some thread is not joined, and they will visit destroyed resource, which is invalid.
115 lines
4.3 KiB
C++
115 lines
4.3 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "exprs/hll_function.h"
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#include "exprs/anyval_util.h"
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#include "util/hash_util.hpp"
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#include "util/slice.h"
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namespace doris {
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using doris_udf::BigIntVal;
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using doris_udf::StringVal;
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void HllFunctions::init() {
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}
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StringVal HllFunctions::hll_hash(FunctionContext* ctx, const StringVal& input) {
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HyperLogLog hll;
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if (!input.is_null) {
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uint64_t hash_value = HashUtil::murmur_hash64A(input.ptr, input.len, HashUtil::MURMUR_SEED);
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hll.update(hash_value);
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}
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std::string buf;
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buf.resize(hll.max_serialized_size());
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buf.resize(hll.serialize((uint8_t*)buf.c_str()));
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return AnyValUtil::from_string_temp(ctx, buf);
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}
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void HllFunctions::hll_init(FunctionContext *, StringVal* dst) {
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dst->is_null = false;
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dst->len = sizeof(HyperLogLog);
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dst->ptr = (uint8_t*)new HyperLogLog();
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}
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StringVal HllFunctions::hll_empty(FunctionContext* ctx) {
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return AnyValUtil::from_string_temp(ctx, HyperLogLog::empty());
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}
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template <typename T>
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void HllFunctions::hll_update(FunctionContext *, const T &src, StringVal* dst) {
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if (src.is_null) {
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return;
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}
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uint64_t hash_value = AnyValUtil::hash64_murmur(src, HashUtil::MURMUR_SEED);
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if (hash_value != 0) {
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auto* dst_hll = reinterpret_cast<HyperLogLog*>(dst->ptr);
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dst_hll->update(hash_value);
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}
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}
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void HllFunctions::hll_merge(FunctionContext*, const StringVal& src, StringVal* dst) {
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auto* dst_hll = reinterpret_cast<HyperLogLog*>(dst->ptr);
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// zero size means the src input is a agg object
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if (src.len == 0) {
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dst_hll->merge(*reinterpret_cast<HyperLogLog*>(src.ptr));
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} else {
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dst_hll->merge(HyperLogLog(Slice(src.ptr, src.len)));
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}
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}
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BigIntVal HllFunctions::hll_finalize(FunctionContext*, const StringVal &src) {
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auto* src_hll = reinterpret_cast<HyperLogLog*>(src.ptr);
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BigIntVal result(src_hll->estimate_cardinality());
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delete src_hll;
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return result;
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}
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BigIntVal HllFunctions::hll_cardinality(FunctionContext* ctx, const StringVal& input) {
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if (input.is_null) {
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return BigIntVal::null();
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}
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StringVal dst;
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hll_init(ctx, &dst);
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hll_merge(ctx, input, &dst);
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return hll_finalize(ctx, dst);
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}
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StringVal HllFunctions::hll_serialize(FunctionContext *ctx, const StringVal &src) {
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auto* src_hll = reinterpret_cast<HyperLogLog*>(src.ptr);
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StringVal result(ctx, src_hll->max_serialized_size());
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int size = src_hll->serialize((uint8_t*)result.ptr);
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result.resize(ctx, size);
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delete src_hll;
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return result;
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}
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template void HllFunctions::hll_update(FunctionContext*, const BooleanVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const TinyIntVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const SmallIntVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const IntVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const BigIntVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const FloatVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const DoubleVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const StringVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const DateTimeVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const LargeIntVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const DecimalVal&, StringVal*);
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template void HllFunctions::hll_update(FunctionContext*, const DecimalV2Val&, StringVal*);
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}
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