[FLINK-16877] SingleDirectoryWriter should not produce file when no input record

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Table SQL / Runtime
• Labels: pull-request-available
• Assignee: Jingsong Lee
• Reporter: Jingsong Lee
• Created: 31/Mar/20 06:43
• Updated: 01/Apr/20 08:01
• Resolved: 01/Apr/20 08:01

Description

SingleDirectoryWriter should not produce file when no input record.

Now it will produce a empty file, we should avoid this.

Issue Links

• links to: GitHub Pull Request #11572