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Question
Point out the wrong statement :
Options:
A .  CURRENT references the start of the field path being processed in the aggregation pipeline stage
B .  All stages start with CURRENT the same as ROOT
C .  DESCENDING is one of the allowed results of a $let expression
D .  None of the mentioned
Answer: Option C


However, since $ is equivalent to $$CURRENT., rebinding CURRENT changes the meaning of $ accesses.



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