请问下flinkcdc oracle 修改数据的时候捕获到的数据里面没有值，这个是咋回事？

请问下flinkcdc oracle 修改数据的时候捕获到的数据里面没有值，这个是咋回事？我的orcle是11g的。但是我增加表中字段又直接报错，请问这个需要做什么设置吗？{"before":{"id":0,"name":"","age":null,"class_name":null,"score":{"scale":0,"value":"XA=="},"sex":null},"after":{"id":0,"name":"","age":null,"class_name":null,"score":{"scale":0,"value":"IQ=="},"sex":null},"source":{"version":"1.9.7.Final","connector":"oracle","name":"oracle_logminer","ts_ms":1713925927000,"snapshot":"false","db":"HELOWIN","sequence":null,"schema":"FLINKUSER","table":"student","txId":"09000a00170c0000","scn":"1548591","commit_scn":"1548592","lcr_position":null,"rs_id":null,"ssn":0,"redo_thread":1},"op":"u","ts_ms":1713925927721,"transaction":null}我用的是flink-cdc 3.0，flink1.17.2