Github user fpompermaier commented on a diff in the pull request:
https://github.com/apache/flink/pull/1885#discussion_r59713178
--- Diff:
flink-batch-connectors/flink-jdbc/src/main/java/org/apache/flink/api/java/io/jdbc/JDBCInputFormat.java
---
@@ -232,7 +255,7 @@ private void addValue(OUT reuse) throws IOException,
SQLException {
reuse.setField(resultSet.getInt(pos + 1), pos);
break;
case java.sql.Types.FLOAT:
-
reuse.setField(resultSet.getDouble(pos + 1), pos);
+
reuse.setField(resultSet.getFloat(pos + 1), pos);
--- End diff --
The problem arises when I look at the column type in the db and I see
Float, so I set Float as the Class of my tuple field and then I get a
ClassCastException..
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