myredshiftconn<-src_postgres('nexus' ,
                         host = 'xxxxxxx.yyyyy-1.redshift.amazonaws.com',
                         port=5439,
                         user="xxxx",
                         password="yyyyy")

succesful_sales=tbl(myredshiftconn,"x_succesful_sales")

Error in postgresqlExecStatement(conn, statement, ...) :
RS-DBI driver: (could not Retrieve the result : ERROR:  relation "x_succesful_sales" does not exist