????????????????,
??????csv??????????????????
t_env.register_table_source("mySource",
                               CsvTableSource(r'data\trip\yellow_tripdata_2014-01.csv',
                               ['vendor_id', 'pickup_datetime', 'dropoff_datetime', 'passenger_count',
                                'trip_distance', 'pickup_longitude', 'pickup_latitude', 'rate_code',
                                'store_and_fwd_flag', 'dropoff_longitude', 'dropoff_latitude',
                                'payment_type', 'fare_amount', 'surcharge', 'mta_tax', 'tip_amount',
                                'tolls_amount', 'total_amount'],                                   
                               [DataTypes.STRING(), DataTypes.STRING(), DataTypes.STRING(), DataTypes.BIGINT(),
                                DataTypes.FLOAT(), DataTypes.FLOAT(), DataTypes.FLOAT(), DataTypes.BIGINT(),
                                DataTypes.STRING(), DataTypes.FLOAT(), DataTypes.FLOAT(),
                                DataTypes.STRING(), DataTypes.FLOAT(), DataTypes.FLOAT(), DataTypes.FLOAT(), DataTypes.FLOAT(),
                                DataTypes.FLOAT(), DataTypes.FLOAT()])
)
????????????CsvTableSource????????????????????????????????????????????????????'pickup_longitude', 'pickup_latitude','dropoff_longitude', 'dropoff_latitude'????????????????????
?????????? 
connect??OldCsv??Schema????????????????????????connect????????????????????????????????????????????
??????????????????????????????????????????
??????????????

回复