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Class postgresql_data_provider¶

Defined in File PostgreSQLDataProvider.h

Inheritance Relationships¶

Base Type¶

public ral::io::abstractsql_data_provider (Class abstractsql_data_provider)

Class Documentation¶

class ral::io::postgresql_data_provider : public ral::io::abstractsql_data_provider ¶

Public Functions

postgresql_data_provider(const sql_info &sql, size_t total_number_of_nodes, size_t self_node_idx)¶

virtual ~postgresql_data_provider()¶

virtual std::shared_ptr<data_provider> clone() override¶

virtual bool has_next() override¶: tells us if this provider can generate more arrow::io::RandomAccessFile instances

virtual void reset() override¶: Resets file read count to 0 for file based DataProvider

virtual data_handle get_next(bool open_file = true) override¶: gets us the next arrow::io::RandomAccessFile

virtual std::size_t get_num_handles() override¶: Get the number of data_handles that will be provided.

Protected Functions

inline virtual std::unique_ptr<ral::parser::node_transformer> get_predicate_transformer() const override¶

Class parquet_parser Class postgresql_parser