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v4.3
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    v4.3

      dedup()

      Function dedup() deduplicates rows of an alias and return the rows left. Those homologous aliases of the input alias will either be affected by the deduplication process when the function is called in a WITH clause, or not be affected when called in a RETURN clause.

      Arguments:

      • Alias <any>

      Returns:

      • Deduplicated value <any>

      Sample graph: (to be used for the following examples)

      Run below UQLs one by one in an empty graphset to create graph data:

      create().node_schema("professor").node_schema("student")
      create().node_property(@*, "age", int32).node_property(@*, "email", string)
      insert().into(@professor).nodes([{_id:"P001",_uuid:1,age:53,email:"test@yahoo.cn"},{_id:"P002",_uuid:2,age:27,email:"test@ultipa.com"}])
      insert().into(@student).nodes([{_id:"S001",_uuid:3,age:27,email:"test@yeah.net"},{_id:"S002",_uuid:4,age:20,email:"test@w3.org"},{_id:"S003",_uuid:5,age:25,email:"test@gmail.com"}])
      

      Comman Usage

      Example: Calculate the deduplicated age of all nodes in the graph

      find().nodes() as n
      return dedup(n.age)
      

      53
      27
      20
      25
      
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