| // 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 <gtest/gtest.h> |
| |
| #include "exprs/aggregate_functions.h" |
| #include "testutil/function_utils.h" |
| |
| namespace doris { |
| |
| class PercentileApproxTest : public testing::Test { |
| public: |
| PercentileApproxTest() {} |
| }; |
| |
| TEST_F(PercentileApproxTest, testSample) { |
| FunctionUtils* futil = new FunctionUtils(); |
| doris_udf::FunctionContext* context = futil->get_fn_ctx(); |
| |
| DoubleVal doubleQ(0.9); |
| |
| StringVal stringVal1; |
| DoubleVal int1(1); |
| AggregateFunctions::percentile_approx_init(context, &stringVal1); |
| AggregateFunctions::percentile_approx_update(context, int1, doubleQ, &stringVal1); |
| DoubleVal int2(2); |
| AggregateFunctions::percentile_approx_update(context, int2, doubleQ, &stringVal1); |
| |
| StringVal s = AggregateFunctions::percentile_approx_serialize(context, stringVal1); |
| |
| StringVal stringVal2; |
| AggregateFunctions::percentile_approx_init(context, &stringVal2); |
| AggregateFunctions::percentile_approx_merge(context, s, &stringVal2); |
| DoubleVal v = AggregateFunctions::percentile_approx_finalize(context, stringVal2); |
| ASSERT_EQ(v.val, 2); |
| delete futil; |
| } |
| |
| TEST_F(PercentileApproxTest, testNoMerge) { |
| FunctionUtils* futil = new FunctionUtils(); |
| doris_udf::FunctionContext* context = futil->get_fn_ctx(); |
| |
| DoubleVal doubleQ(0.9); |
| |
| StringVal stringVal1; |
| DoubleVal val(1); |
| AggregateFunctions::percentile_approx_init(context, &stringVal1); |
| AggregateFunctions::percentile_approx_update(context, val, doubleQ, &stringVal1); |
| DoubleVal val2(2); |
| AggregateFunctions::percentile_approx_update(context, val2, doubleQ, &stringVal1); |
| |
| DoubleVal v = AggregateFunctions::percentile_approx_finalize(context, stringVal1); |
| ASSERT_EQ(v.val, 2); |
| delete futil; |
| } |
| |
| TEST_F(PercentileApproxTest, testSerialize) { |
| FunctionUtils* futil = new FunctionUtils(); |
| doris_udf::FunctionContext* context = futil->get_fn_ctx(); |
| |
| DoubleVal doubleQ(0.999); |
| StringVal stringVal; |
| AggregateFunctions::percentile_approx_init(context, &stringVal); |
| |
| for (int i = 1; i <= 100000; i++) { |
| DoubleVal val(i); |
| AggregateFunctions::percentile_approx_update(context, val, doubleQ, &stringVal); |
| } |
| StringVal serialized = AggregateFunctions::percentile_approx_serialize(context, stringVal); |
| |
| // mock serialize |
| StringVal stringVal2; |
| AggregateFunctions::percentile_approx_init(context, &stringVal2); |
| AggregateFunctions::percentile_approx_merge(context, serialized, &stringVal2); |
| DoubleVal v = AggregateFunctions::percentile_approx_finalize(context, stringVal2); |
| ASSERT_DOUBLE_EQ(v.val, 99900.5); |
| |
| // merge init percentile stringVal3 should not change the correct result |
| AggregateFunctions::percentile_approx_init(context, &stringVal); |
| |
| for (int i = 1; i <= 100000; i++) { |
| DoubleVal val(i); |
| AggregateFunctions::percentile_approx_update(context, val, doubleQ, &stringVal); |
| } |
| serialized = AggregateFunctions::percentile_approx_serialize(context, stringVal); |
| |
| StringVal stringVal3; |
| AggregateFunctions::percentile_approx_init(context, &stringVal2); |
| AggregateFunctions::percentile_approx_init(context, &stringVal3); |
| StringVal serialized2 = AggregateFunctions::percentile_approx_serialize(context, stringVal3); |
| |
| AggregateFunctions::percentile_approx_merge(context, serialized, &stringVal2); |
| AggregateFunctions::percentile_approx_merge(context, serialized2, &stringVal2); |
| v = AggregateFunctions::percentile_approx_finalize(context, stringVal2); |
| ASSERT_DOUBLE_EQ(v.val, 99900.5); |
| |
| delete futil; |
| } |
| |
| TEST_F(PercentileApproxTest, testNullVale) { |
| FunctionUtils* futil = new FunctionUtils(); |
| doris_udf::FunctionContext* context = futil->get_fn_ctx(); |
| |
| DoubleVal doubleQ(0.999); |
| StringVal stringVal; |
| AggregateFunctions::percentile_approx_init(context, &stringVal); |
| |
| for (int i = 1; i <= 100000; i++) { |
| if (i % 3 == 0) { |
| AggregateFunctions::percentile_approx_update(context, DoubleVal::null(), doubleQ, |
| &stringVal); |
| } else { |
| AggregateFunctions::percentile_approx_update(context, DoubleVal(i), doubleQ, |
| &stringVal); |
| } |
| } |
| StringVal serialized = AggregateFunctions::percentile_approx_serialize(context, stringVal); |
| |
| // mock serialize |
| StringVal stringVal2; |
| AggregateFunctions::percentile_approx_init(context, &stringVal2); |
| AggregateFunctions::percentile_approx_merge(context, serialized, &stringVal2); |
| DoubleVal v = AggregateFunctions::percentile_approx_finalize(context, stringVal2); |
| ASSERT_FLOAT_EQ(v.val, 99900.665999999997); |
| delete futil; |
| } |
| |
| } // namespace doris |
| |
| int main(int argc, char** argv) { |
| ::testing::InitGoogleTest(&argc, argv); |
| return RUN_ALL_TESTS(); |
| } |