RocMarshal commented on code in PR #182:
URL:
https://github.com/apache/flink-connector-jdbc/pull/182#discussion_r2596852007
##########
flink-connector-jdbc-core/src/main/java/org/apache/flink/connector/jdbc/core/database/dialect/AbstractDialectConverter.java:
##########
@@ -173,7 +173,7 @@ protected JdbcDeserializationConverter
createInternalConverter(LogicalType type)
: TimestampData.fromTimestamp((Timestamp) val);
case CHAR:
case VARCHAR:
- return val -> StringData.fromString((String) val);
+ return val -> StringData.fromString(val.toString());
Review Comment:
Could we do it as follows due to the column with UUID type(or other types
are mapping to varchar(x)) may be nullable ?
```
return val -> StringData.fromString(val == null ? null:
val.toString());
```
And if the comment is acceptable, we'd better add the corresponding test
lines for testing the null value in the column.
Pls correct me if I'm wrong in the understood.
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