| /** |
| * 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. |
| **/ |
| |
| #ifndef QUICKSTEP_QUERY_OPTIMIZER_EXPRESSIONS_EXPRESSION_TYPE_HPP_ |
| #define QUICKSTEP_QUERY_OPTIMIZER_EXPRESSIONS_EXPRESSION_TYPE_HPP_ |
| |
| namespace quickstep { |
| namespace optimizer { |
| namespace expressions { |
| |
| /** \addtogroup OptimizerExpressions |
| * @{ |
| */ |
| |
| /** |
| * @brief Optimizer expression types. |
| **/ |
| enum class ExpressionType { |
| kAggregateFunction, |
| kAlias, |
| kAttributeReference, |
| kBinaryExpression, |
| kCast, |
| kComparisonExpression, |
| kExists, |
| kInTableQuery, |
| kInValueList, |
| kLogicalAnd, |
| kLogicalOr, |
| kLogicalNot, |
| kPredicateLiteral, |
| kScalarLiteral, |
| kSearchedCase, |
| kSimpleCase, |
| kSubqueryExpression, |
| kUnaryExpression, |
| kWindowAggregateFunction |
| }; |
| |
| /** @} */ |
| |
| } // namespace expressions |
| } // namespace optimizer |
| } // namespace quickstep |
| |
| #endif /* QUICKSTEP_QUERY_OPTIMIZER_EXPRESSIONS_EXPRESSION_TYPE_HPP_ */ |