[SPARK-26791] Some scala codes doesn't show friendly and some description about foreachBatch is misleading

• Type: Documentation
• Status: Resolved
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 2.4.0
• Component/s: Documentation

Environment

NA

• Assignee: Unassigned
• Reporter: chaiyongqiang
• Created: 31/Jan/19 00:19
• Updated: 12/Dec/22 18:11
• Resolved: 01/Mar/19 21:43

Description

Introduction about foreachbatch

Introduction about policy-for-handling-multiple-watermarks

The introduction about foreachBatch and policy-for-handling-multiple-watermarks doesn't look good with the scala code.

Besides, when taking about foreachBatch using the uncache api which doesn't exists, it may be misleading.