- (get-copy-data CONNECTION [format: FORMAT])procedure
Obtain one row of COPY data from the server. The data's contents will be in the format indicated by the server. If FORMAT is 'text, it the data will be returned as a string, if it is 'binary, it will be returned as a blob. The user is responsible for providing the right format to match the output format of the query sent earlier.
After the last row is received, this procedure returns a result object (which can be detected by calling result? on it).