我对 Kafka Stream 比较陌生，并试图打印出我创建的流中的消息。 谁能告诉我为什么所有的消息都失败了？
当我使用打印命令时，我得到了这个
print 'main' from beginning limit 10;
Key format: ¯\_(ツ)_/¯ - no data processed
Value format: KAFKA_STRING
rowtime: 2021/05/29 14:17:57.375 Z, key: <null>, value: A-1,2,5/21/2019 8:29,5/21/2019 9:29,34.808868,-82.269157,34.808868,-82.269157,0,Accident on Tanner Rd at Pennbrooke Ln.,439,Tanner Rd,R,Greenville,Greenville,SC,29607-6027,US,U
S/Eastern,KGMU,5/21/2019 8:53,76,76,52,28.91,10,N,7,0,Fair,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,Day,Day,Day,Day
当我运行我创建的流的描述扩展时，我得到以下内容：
Name : ACCIDENTS_ORIGINAL
Type : STREAM
Timestamp field : START_TIME
Key format : KAFKA
Value format : DELIMITED
Kafka topic : main (partitions: 1, replication: 1)
Statement : CREATE STREAM ACCIDENTS_ORIGINAL (ID STRING, SEVERITY INTEGER, START_TIME STRING,
END_TIME STRING, START_LAT DOUBLE, START_LNG DOUBLE, END_LAT DOUBLE, END_LNG DOUBLE, DISTANCE DOUBLE,
DESCRIPTION STRING, NUMBER DOUBLE, STREET STRING, SIDE STRING, CITY STRING, COUNTY STRING,
STATE STRING, ZIPCODE STRING, COUNTRY STRING, TIMEZONE STRING, AIRPORT_CODE STRING,
WEATHER_TIME STRING, TEMPERATURE DOUBLE, WIND_CHILL DOUBLE, HUMIDITY DOUBLE,
PRESSURE DOUBLE, VISIBILITY DOUBLE, WIND_DIRECTION STRING, WIND_SPEED STRING,
PRECIPITATION DOUBLE, WEATHER_CONDITION STRING, AMENITY BOOLEAN, BUMP BOOLEAN,
CROSSING BOOLEAN, GIVE_WAY BOOLEAN, JUNCTION BOOLEAN, NO_EXIT BOOLEAN, RAILWAY BOOLEAN,
ROUNDABOUT BOOLEAN, STATION BOOLEAN, STOP BOOLEAN, TRAFFIC_CALMING BOOLEAN,
TRAFFIC_SIGNAL BOOLEAN, TURNING_LOOP BOOLEAN, SUNRISE_SUNSET STRING,
CIVIL_TWILIGHT STRING, NAUTICAL_TWILIGHT STRING, ASTRONOMICAL_TWILIGHT STRING)
WITH (KAFKA_TOPIC='main', KEY_FORMAT='KAFKA', TIMESTAMP='Start_Time',
TIMESTAMP_FORMAT='yyyy-MM-dd HH:mm:ss', VALUE_FORMAT='DELIMITED');
谁能帮我看看并告诉我我在这里做错了什么？
小更新，我也尝试将密钥格式设置为无，但仍然使所有消息失败。