[SPARK-22252][SQL][followup] Command should not be a LeafNode #19493
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What changes were proposed in this pull request?
This is a minor folllowup of #19474 .
#19474 partially reverted #18064 but accidentally introduced a behavior change.
CommandextendedLogicalPlanbefore #18064 , but #19474 made it extendLeafNode. This is an internal behavior change as now allCommandsubclasses can't define children, and they have to implementcomputeStatisticmethod.This PR fixes this by making
CommandextendLogicalPlanHow was this patch tested?
N/A