The server calls the_open_extfn v4 API method to initiate fetching of rows.
void _open_extfn( a_v4_extfn_table_context *cntxt, )
The UDF uses this method to open a result set and allocate any resources (for example, streams) needed for sending results to the server.
Parameter | Description |
---|---|
cntxt | The procedure context object |