Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1941#discussion_r62832588
--- Diff:
flink-batch-connectors/flink-jdbc/src/main/java/org/apache/flink/api/java/io/jdbc/JDBCInputFormat.java
---
@@ -81,25 +134,51 @@ public void configure(Configuration parameters) {
* @throws IOException
*/
@Override
- public void open(InputSplit ignored) throws IOException {
+ public void open(InputSplit inputSplit) throws IOException {
+ hasNext = true;
--- End diff --
Call `resultSet.next()` at the end of `open()` and only set `hasNext =
true` if the split actually contains a record.
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