[FLINK-19188] Add a new streaming SQL examples

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 10/Sep/20 08:35
• Updated: 28/May/21 06:58
• Resolved: 24/Nov/20 15:11

Description

Add a new streaming SQL example. It should work entirely with SQL.

It should show:

How to get started with a connector (CSV or DataGen?) and event-time.
How the DDL works.
How to work with Table Environment and SQL.
How a complex SQL query looks like. Windows, joins, maybe Top N.
How to use pure streaming operators vs. changelog producing operators

Issue Links

• links to: GitHub Pull Request #13413