Github user twalthr commented on a diff in the pull request:
https://github.com/apache/incubator-flink/pull/203#discussion_r20855874
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/io/CsvOutputFormat.java ---
@@ -217,7 +218,7 @@ public String toString() {
*/
@Override
public void setInputType(TypeInformation<?> type) {
- if (!type.isTupleType()) {
+ if (!type.isTupleType() && !(type instanceof UnknownTypeInfo)) {
--- End diff --
Thats one of the points that need to be discussed. type.isTupleType() can
return false, but since it is an UnkownType it can be a TupleType and thus the
job runs successfully anyways.
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