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Support
first_value window function (#7427)
ref #7376
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2023 PingCAP, Ltd. | ||
| // | ||
| // 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. | ||
|
|
||
| #include <Interpreters/Context.h> | ||
| #include <TestUtils/ExecutorTestUtils.h> | ||
|
|
||
| namespace DB::tests | ||
| { | ||
| // TODO Tests with frame should be added | ||
| class FirstValue : public DB::tests::ExecutorTest | ||
| { | ||
| static const size_t max_concurrency_level = 10; | ||
|
|
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| public: | ||
| static constexpr auto value_col_name = "first_value"; | ||
| const ASTPtr value_col = col(value_col_name); | ||
|
|
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| void initializeContext() override | ||
| { | ||
| ExecutorTest::initializeContext(); | ||
| } | ||
|
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| void executeWithConcurrencyAndBlockSize(const std::shared_ptr<tipb::DAGRequest> & request, const ColumnsWithTypeAndName & expect_columns) | ||
| { | ||
| std::vector<size_t> block_sizes{1, 2, 3, 4, DEFAULT_BLOCK_SIZE}; | ||
| for (auto block_size : block_sizes) | ||
| { | ||
| context.context->setSetting("max_block_size", Field(static_cast<UInt64>(block_size))); | ||
| ASSERT_COLUMNS_EQ_R(expect_columns, executeStreams(request)); | ||
| ASSERT_COLUMNS_EQ_UR(expect_columns, executeStreams(request, 2)); | ||
| ASSERT_COLUMNS_EQ_UR(expect_columns, executeStreams(request, max_concurrency_level)); | ||
| } | ||
| } | ||
|
|
||
| void executeFunctionAndAssert( | ||
| const ColumnWithTypeAndName & result, | ||
| const ASTPtr & function, | ||
| const ColumnsWithTypeAndName & input) | ||
| { | ||
| ColumnsWithTypeAndName actual_input = input; | ||
| assert(actual_input.size() == 3); | ||
| TiDB::TP value_tp = dataTypeToTP(actual_input[2].type); | ||
|
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| actual_input[0].name = "partition"; | ||
| actual_input[1].name = "order"; | ||
| actual_input[2].name = value_col_name; | ||
| context.addMockTable( | ||
| {"test_db", "test_table_for_first_value"}, | ||
| {{"partition", TiDB::TP::TypeLongLong, actual_input[0].type->isNullable()}, | ||
| {"order", TiDB::TP::TypeLongLong, actual_input[1].type->isNullable()}, | ||
| {value_col_name, value_tp, actual_input[2].type->isNullable()}}, | ||
| actual_input); | ||
|
|
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| auto request = context | ||
| .scan("test_db", "test_table_for_first_value") | ||
| .sort({{"partition", false}, {"order", false}}, true) | ||
| .window(function, {"order", false}, {"partition", false}, MockWindowFrame{}) | ||
| .build(context); | ||
|
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| ColumnsWithTypeAndName expect = input; | ||
| expect.push_back(result); | ||
| executeWithConcurrencyAndBlockSize(request, expect); | ||
| } | ||
|
|
||
| template <typename IntType> | ||
| void testInt() | ||
| { | ||
| executeFunctionAndAssert( | ||
| toVec<IntType>({1, 2, 2, 2, 2, 6, 6, 6, 6, 6, 11, 11, 11}), | ||
| FirstValue(value_col), | ||
| {toVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toVec<IntType>(/*value*/ {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13})}); | ||
|
|
||
| executeFunctionAndAssert( | ||
| toNullableVec<IntType>({{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}}), | ||
| FirstValue(value_col), | ||
| {toNullableVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toNullableVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toNullableVec<IntType>(/*value*/ {{}, {}, 3, 4, 5, {}, 7, 8, 9, 10, {}, 12, 13})}); | ||
| } | ||
|
|
||
| template <typename FloatType> | ||
| void testFloat() | ||
| { | ||
| executeFunctionAndAssert( | ||
| toVec<FloatType>({1, 2, 2, 2, 2, 6, 6, 6, 6, 6, 11, 11, 11}), | ||
| FirstValue(value_col), | ||
| {toVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toVec<FloatType>(/*value*/ {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13})}); | ||
|
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| executeFunctionAndAssert( | ||
| toNullableVec<FloatType>({{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}}), | ||
| FirstValue(value_col), | ||
| {toNullableVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toNullableVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toNullableVec<FloatType>(/*value*/ {{}, {}, 3, 4, 5, {}, 7, 8, 9, 10, {}, 12, 13})}); | ||
| } | ||
| }; | ||
|
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| TEST_F(FirstValue, firstValue) | ||
| try | ||
| { | ||
| executeFunctionAndAssert( | ||
| toVec<String>({"1", "2", "2", "2", "2", "6", "6", "6", "6", "6", "11", "11", "11"}), | ||
| FirstValue(value_col), | ||
| {toVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toVec<String>(/*value*/ {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13"})}); | ||
|
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| executeFunctionAndAssert( | ||
| toNullableVec<String>({{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}}), | ||
| FirstValue(value_col), | ||
| {toNullableVec<Int64>(/*partition*/ {0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3}), | ||
| toNullableVec<Int64>(/*order*/ {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}), | ||
| toNullableVec<String>(/*value*/ {{}, {}, "3", "4", "5", {}, "7", "8", "9", "10", {}, "12", "13"})}); | ||
|
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| // TODO support unsigned int. | ||
| testInt<Int8>(); | ||
| testInt<Int16>(); | ||
| testInt<Int32>(); | ||
| testInt<Int64>(); | ||
|
|
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| testFloat<Float32>(); | ||
| testFloat<Float64>(); | ||
| } | ||
| CATCH | ||
|
|
||
| } // namespace DB::tests |
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