[jira] (FLINK-4721) Getting exception when using a key of type Option[String] in distinct operation

[Robert Metzger (JIRA)]

Title: Message Title

Robert Metzger updated an issue   Flink / FLINK-4721 Getting exception when using a key of type Option[String] in distinct operation Change By: Robert Metzger Component/s: Scala API Add Comment   This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)