| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // DuckDB |
| 3 | // |
| 4 | // duckdb/planner/operator/logical_sample.hpp |
| 5 | // |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #pragma once |
| 10 | |
| 11 | #include "duckdb/planner/logical_operator.hpp" |
| 12 | #include "duckdb/parser/parsed_data/sample_options.hpp" |
| 13 | |
| 14 | namespace duckdb { |
| 15 | |
| 16 | //! LogicalSample represents a SAMPLE clause |
| 17 | class LogicalSample : public LogicalOperator { |
| 18 | public: |
| 19 | static constexpr const LogicalOperatorType TYPE = LogicalOperatorType::LOGICAL_SAMPLE; |
| 20 | |
| 21 | public: |
| 22 | LogicalSample(unique_ptr<SampleOptions> sample_options_p, unique_ptr<LogicalOperator> child); |
| 23 | |
| 24 | //! The sample options |
| 25 | unique_ptr<SampleOptions> sample_options; |
| 26 | |
| 27 | public: |
| 28 | vector<ColumnBinding> GetColumnBindings() override; |
| 29 | idx_t EstimateCardinality(ClientContext &context) override; |
| 30 | |
| 31 | void Serialize(FieldWriter &writer) const override; |
| 32 | static unique_ptr<LogicalOperator> Deserialize(LogicalDeserializationState &state, FieldReader &reader); |
| 33 | |
| 34 | protected: |
| 35 | void ResolveTypes() override; |
| 36 | }; |
| 37 | |
| 38 | } // namespace duckdb |
| 39 |