RecordSet also support set operations you can add, union and intersect, ... recordset. For example you can see below code.
record in recset1 # include
record not in recset1 # not include
recset1 + recset2 # extend
recset1 | recset2 # union
recset1 & recset2 # intersect
recset1 - recset2 # difference
recset.copy() # to copy recordset (not a deep copy)
Note-RecordSet also support set operations you can add, union and intersect.
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