[FLINK-20823] Update documentation to mention Table/SQL API doesn't provide cross-major-version state compatibility

• Type: Improvement
• Status: Resolved
• Priority: Not a Priority
• Resolution: Fixed
• Component/s: Documentation, Table SQL / API
• Labels: auto-deprioritized-major auto-deprioritized-minor
• Assignee: Unassigned
• Reporter: Jark Wu
• Created: 31/Dec/20 02:23
• Updated: 03/Jan/22 07:25
• Resolved: 03/Jan/22 07:25

Description

As discussed in the mailing list: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Did-Flink-1-11-break-backwards-compatibility-for-the-table-environment-tp47472p47492.html

Flink Table/SQL API doesn't provide cross-major-version state compatibility, however, this is not documented in anywhere. We should update the documentation. Besides, we should also mention that we provide state compatibility across minor versions.

Issue Links

• duplicates: FLINK-22799 Missing documentation: State backwards compatibility is not support for Flink SQL