This statement defines the function mapping READ_NOS_json_intable_fm for the READ_NOS table operator. The function mapping includes the EXTERNAL SECURITY clause with the authorization DefAuth, a return type of NOSREAD_RECORD, and the ANY IN TABLE clause for querying JSON files regardless of file extension or lack thereof.
CREATE FUNCTION MAPPING READ_NOS_json_intable_fm FOR TD_SYSFNLIB.READ_NOS EXTERNAL SECURITY DEFINER TRUSTED DefAuth USING LOCATION('/S3/td-usgs.s3.amazonaws.com/JSONDATA'), RETURNTYPE('NOSREAD_RECORD'), ANY IN TABLE ;