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Extract reusable functions for SQL generation in fuzzer test (faceboo…
…kincubator#10545) Summary: Extracts appendComma, toCallInputsSql, toCallSql, toAggregateCallSql functions for reuse. Pull Request resolved: facebookincubator#10545 Reviewed By: kevinwilfong Differential Revision: D60176391 Pulled By: Yuhta fbshipit-source-id: 4690bd21038f2a3244a5979d5cb59d9c291a17ad
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * 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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|
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| #include "velox/exec/fuzzer/ToSQLUtil.h" | ||
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| namespace facebook::velox::exec::test { | ||
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| void appendComma(int32_t i, std::stringstream& sql) { | ||
| if (i > 0) { | ||
| sql << ", "; | ||
| } | ||
| } | ||
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| void toCallInputsSql( | ||
| const std::vector<core::TypedExprPtr>& inputs, | ||
| std::stringstream& sql) { | ||
| for (auto i = 0; i < inputs.size(); ++i) { | ||
| appendComma(i, sql); | ||
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| const auto& input = inputs.at(i); | ||
| if (auto field = | ||
| std::dynamic_pointer_cast<const core::FieldAccessTypedExpr>( | ||
| input)) { | ||
| sql << field->name(); | ||
| } else if ( | ||
| auto call = | ||
| std::dynamic_pointer_cast<const core::CallTypedExpr>(input)) { | ||
| sql << toCallSql(call); | ||
| } else if ( | ||
| auto lambda = | ||
| std::dynamic_pointer_cast<const core::LambdaTypedExpr>(input)) { | ||
| const auto& signature = lambda->signature(); | ||
| const auto& body = | ||
| std::dynamic_pointer_cast<const core::CallTypedExpr>(lambda->body()); | ||
| VELOX_CHECK_NOT_NULL(body); | ||
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| sql << "("; | ||
| for (auto j = 0; j < signature->size(); ++j) { | ||
| appendComma(j, sql); | ||
| sql << signature->nameOf(j); | ||
| } | ||
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| sql << ") -> " << toCallSql(body); | ||
| } else { | ||
| VELOX_NYI("Unsupported input expression: {}.", input->toString()); | ||
| } | ||
| } | ||
| } | ||
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| std::string toCallSql(const core::CallTypedExprPtr& call) { | ||
| std::stringstream sql; | ||
| sql << call->name() << "("; | ||
| toCallInputsSql(call->inputs(), sql); | ||
| sql << ")"; | ||
| return sql.str(); | ||
| } | ||
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| std::string toAggregateCallSql( | ||
| const core::CallTypedExprPtr& call, | ||
| const std::vector<core::FieldAccessTypedExprPtr>& sortingKeys, | ||
| const std::vector<core::SortOrder>& sortingOrders, | ||
| bool distinct) { | ||
| VELOX_CHECK_EQ(sortingKeys.size(), sortingOrders.size()); | ||
| std::stringstream sql; | ||
| sql << call->name() << "("; | ||
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| if (distinct) { | ||
| sql << "distinct "; | ||
| } | ||
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| toCallInputsSql(call->inputs(), sql); | ||
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| if (!sortingKeys.empty()) { | ||
| sql << " ORDER BY "; | ||
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| for (int i = 0; i < sortingKeys.size(); i++) { | ||
| appendComma(i, sql); | ||
| sql << sortingKeys[i]->name() << " " << sortingOrders[i].toString(); | ||
| } | ||
| } | ||
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| sql << ")"; | ||
| return sql.str(); | ||
| } | ||
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| } // namespace facebook::velox::exec::test |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * 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. | ||
| */ | ||
| #pragma once | ||
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| #include "velox/core/PlanNode.h" | ||
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| namespace facebook::velox::exec::test { | ||
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| /// Appends a comma to a given stringstream if the provided integer is greater | ||
| /// than 0. | ||
| void appendComma(int32_t i, std::stringstream& sql); | ||
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| // Converts input expressions into SQL string and appends to a given | ||
| // stringstream. | ||
| void toCallInputsSql( | ||
| const std::vector<core::TypedExprPtr>& inputs, | ||
| std::stringstream& sql); | ||
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| // Converts a call expression into a SQL string. | ||
| std::string toCallSql(const core::CallTypedExprPtr& call); | ||
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| // Converts aggregate call expression into a SQL string. | ||
| std::string toAggregateCallSql( | ||
| const core::CallTypedExprPtr& call, | ||
| const std::vector<core::FieldAccessTypedExprPtr>& sortingKeys, | ||
| const std::vector<core::SortOrder>& sortingOrders, | ||
| bool distinct); | ||
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| } // namespace facebook::velox::exec::test |