FIXME
StreamingGlobalLimitStrategy Execution Planning Strategy
StreamingGlobalLimitStrategy
is an execution planning strategy that can plan streaming queries with ReturnAnswer
and Limit
logical operators (over streaming queries) with the Append output mode to StreamingGlobalLimitExec physical operator.
Tip
|
Read up on Execution Planning Strategies in The Internals of Spark SQL book. |
StreamingGlobalLimitStrategy
is used (and created) exclusively when IncrementalExecution is requested to plan a streaming query.
StreamingGlobalLimitStrategy
takes a single OutputMode to be created (which is the OutputMode of the IncrementalExecution).