 
        org.apache.spark.sql.execution.SparkStrategies
 
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
       
      
    
      Returns a placeholder for a physical plan that executes plan.
Returns a placeholder for a physical plan that executes plan. This placeholder will be
filled in automatically by the QueryPlanner using the other execution strategies that are
available.
 
      
    
       
      
    
       
      
    
       
      
    
       
      
    
      
Used to plan aggregation queries that are computed incrementally as part of a StreamingQuery. Currently this rule is injected into the planner on-demand, only when planning in a org.apache.spark.sql.execution.streaming.StreamExecution