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GDV-28: [C++] Add hash functions on all data types (apache#69)
* GDV-28: [C++] Add hash functions on all data types * GDV-28: Fix stylecheck in travis to print diff * GDV-28: pick clang-format from llvm-binary dir * GDV-28: handle case when seed is null * GDV-28: [C++] Fix a style check
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| // Copyright (C) 2017-2018 Dremio Corporation | ||
| // | ||
| // Licensed 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. | ||
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| #include <gtest/gtest.h> | ||
| #include "arrow/memory_pool.h" | ||
| #include "gandiva/projector.h" | ||
| #include "gandiva/status.h" | ||
| #include "gandiva/tree_expr_builder.h" | ||
| #include "integ/test_util.h" | ||
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| namespace gandiva { | ||
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| using arrow::boolean; | ||
| using arrow::int32; | ||
| using arrow::int64; | ||
| using arrow::utf8; | ||
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| class TestHash : public ::testing::Test { | ||
| public: | ||
| void SetUp() { pool_ = arrow::default_memory_pool(); } | ||
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| protected: | ||
| arrow::MemoryPool* pool_; | ||
| }; | ||
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| TEST_F(TestHash, TestSimple) { | ||
| // schema for input fields | ||
| auto field_a = field("a", int32()); | ||
| auto schema = arrow::schema({field_a}); | ||
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| // output fields | ||
| auto res_0 = field("res0", int32()); | ||
| auto res_1 = field("res1", int64()); | ||
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| // build expression. | ||
| // hash32(a, 10) | ||
| // hash64(a) | ||
| auto node_a = TreeExprBuilder::MakeField(field_a); | ||
| auto literal_10 = TreeExprBuilder::MakeLiteral((int32_t)10); | ||
| auto hash32 = TreeExprBuilder::MakeFunction("hash32", {node_a, literal_10}, int32()); | ||
| auto hash64 = TreeExprBuilder::MakeFunction("hash64", {node_a}, int64()); | ||
| auto expr_0 = TreeExprBuilder::MakeExpression(hash32, res_0); | ||
| auto expr_1 = TreeExprBuilder::MakeExpression(hash64, res_1); | ||
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| // Build a projector for the expression. | ||
| std::shared_ptr<Projector> projector; | ||
| Status status = Projector::Make(schema, {expr_0, expr_1}, pool_, &projector); | ||
| EXPECT_TRUE(status.ok()) << status.message(); | ||
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| // Create a row-batch with some sample data | ||
| int num_records = 4; | ||
| auto array_a = MakeArrowArrayInt32({1, 2, 3, 4}, {false, true, true, true}); | ||
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| // prepare input record batch | ||
| auto in_batch = arrow::RecordBatch::Make(schema, num_records, {array_a}); | ||
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| // Evaluate expression | ||
| arrow::ArrayVector outputs; | ||
| status = projector->Evaluate(*in_batch, &outputs); | ||
| EXPECT_TRUE(status.ok()); | ||
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| // Validate results | ||
| auto int32_arr = std::dynamic_pointer_cast<arrow::Int32Array>(outputs.at(0)); | ||
| EXPECT_EQ(int32_arr->null_count(), 0); | ||
| EXPECT_EQ(int32_arr->Value(0), 0); | ||
| for (int i = 1; i < num_records; ++i) { | ||
| EXPECT_NE(int32_arr->Value(i), int32_arr->Value(i - 1)); | ||
| } | ||
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| auto int64_arr = std::dynamic_pointer_cast<arrow::Int64Array>(outputs.at(1)); | ||
| EXPECT_EQ(int64_arr->null_count(), 0); | ||
| EXPECT_EQ(int64_arr->Value(0), 0); | ||
| for (int i = 1; i < num_records; ++i) { | ||
| EXPECT_NE(int64_arr->Value(i), int64_arr->Value(i - 1)); | ||
| } | ||
| } | ||
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| TEST_F(TestHash, TestBuf) { | ||
| // schema for input fields | ||
| auto field_a = field("a", utf8()); | ||
| auto schema = arrow::schema({field_a}); | ||
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| // output fields | ||
| auto res_0 = field("res0", int32()); | ||
| auto res_1 = field("res1", int64()); | ||
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| // build expressions. | ||
| // hash32(a) | ||
| // hash64(a, 10) | ||
| auto node_a = TreeExprBuilder::MakeField(field_a); | ||
| auto literal_10 = TreeExprBuilder::MakeLiteral((int64_t)10); | ||
| auto hash32 = TreeExprBuilder::MakeFunction("hash32", {node_a}, int32()); | ||
| auto hash64 = TreeExprBuilder::MakeFunction("hash64", {node_a, literal_10}, int64()); | ||
| auto expr_0 = TreeExprBuilder::MakeExpression(hash32, res_0); | ||
| auto expr_1 = TreeExprBuilder::MakeExpression(hash64, res_1); | ||
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| // Build a projector for the expressions. | ||
| std::shared_ptr<Projector> projector; | ||
| Status status = Projector::Make(schema, {expr_0, expr_1}, pool_, &projector); | ||
| EXPECT_TRUE(status.ok()) << status.message(); | ||
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| // Create a row-batch with some sample data | ||
| int num_records = 4; | ||
| auto array_a = | ||
| MakeArrowArrayUtf8({"foo", "hello", "bye", "hi"}, {false, true, true, true}); | ||
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| // prepare input record batch | ||
| auto in_batch = arrow::RecordBatch::Make(schema, num_records, {array_a}); | ||
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| // Evaluate expression | ||
| arrow::ArrayVector outputs; | ||
| status = projector->Evaluate(*in_batch, &outputs); | ||
| EXPECT_TRUE(status.ok()); | ||
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| // Validate results | ||
| auto int32_arr = std::dynamic_pointer_cast<arrow::Int32Array>(outputs.at(0)); | ||
| EXPECT_EQ(int32_arr->null_count(), 0); | ||
| EXPECT_EQ(int32_arr->Value(0), 0); | ||
| for (int i = 1; i < num_records; ++i) { | ||
| EXPECT_NE(int32_arr->Value(i), int32_arr->Value(i - 1)); | ||
| } | ||
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| auto int64_arr = std::dynamic_pointer_cast<arrow::Int64Array>(outputs.at(1)); | ||
| EXPECT_EQ(int64_arr->null_count(), 0); | ||
| EXPECT_EQ(int64_arr->Value(0), 0); | ||
| for (int i = 1; i < num_records; ++i) { | ||
| EXPECT_NE(int64_arr->Value(i), int64_arr->Value(i - 1)); | ||
| } | ||
| } | ||
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| } // namespace gandiva |
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