Jark Wu created FLINK-20386:
-------------------------------
Summary: ClassCastException when lookup join a JDBC table on INT
UNSIGNED column
Key: FLINK-20386
URL: https://issues.apache.org/jira/browse/FLINK-20386
Project: Flink
Issue Type: Bug
Components: Connectors / JDBC, Table SQL / Ecosystem
Affects Versions: 1.11.2, 1.12.0
Reporter: Jark Wu
The primary key of the MySQL is an INT UNSIGNED column, but declared INT in
Flink.
I know the
[docs|https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/connectors/jdbc.html#data-type-mapping]
say it should be decalred BIGINT in Flink, however, would be better not fail
the job.
{code}
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
at
org.apache.flink.table.data.GenericRowData.getInt(GenericRowData.java:149)
~[flink-table-blink_2.11-1.11-vvr-2.1.1-SNAPSHOT.jar:1.11-vvr-2.1.1-SNAPSHOT]
at JoinTableFuncCollector$6460.collect(Unknown Source) ~[?:?]
at
org.apache.flink.table.functions.TableFunction.collect(TableFunction.java:203)
~[flink-table-blink_2.11-1.11-vvr-2.1.1-SNAPSHOT.jar:1.11-vvr-2.1.1-SNAPSHOT]
at
org.apache.flink.connector.jdbc.table.JdbcRowDataLookupFunction.eval(JdbcRowDataLookupFunction.java:162)
~[?:?]
{code}
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