Fast import/export using COPY.
string $expression#int $direction#string $options#Start a COPY operation.
void pq\COPY::__construct(pq\Connection $conn, string $expression, int $direction[, string $options = NULL])
End the COPY operation to the server during pq\Result::COPY_IN state.
void pq\COPY::end([string $error = NULL])
Receive data from the server during pq\Result::COPY_OUT state.
bool pq\COPY::get(string &$data)
Send data to the server during pq\Result::COPY_IN state.
void pq\COPY::put(string $data)