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v4.3
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    中文EN
    v4.3

      Regular Match

      • Expression: <string> =~ "<regexp>"
      • Left operand: string
      • Right operand: regular expression

      Constant

      Example: judge if String "adfAWa" is composed of uncapitalized letters

      return "Ultipa" =~ "^[a-z]+$"
      

      0
      

      Function

      Example: Convert 'Graph Database' to lowercase and judge whether it is composed of uncapitalized letters

      return lower("Ultipa.com") =~ "^[a-z]+$"
      

      0
      

      Alias

      Example: Judge each row of an alias whether it is composed of uncapitalized letters

      uncollect ["Ultipa.com", "grAph", "graph"] as a
      return a =~ "^[a-z]+$"
      

      0
      0
      1
      

      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"}])
      

      Property

      Example: Find nodes whose email is in format xxx@xxx.com or xxx@xxx.cn

      find().nodes({email =~ "^[a-zA-Z0-9_.-]+@[a-zA-Z0-9]+\.(com|cn)$"}) as n
      return n{*} 
      

      |--------------- @professor --------------|
      |  _id  | _uuid |  age  |       email     |
      |-------|-------|-------|-----------------|
      | P001  |   1   |  53   | test@yahoo.cn   |
      | P002  |   2   |  27   | test@ultipa.com |
      
      |---------------- @student ---------------|
      |  _id  | _uuid |  age  |       email     |
      |-------|-------|-------|-----------------|
      | S003  |   5   |  25   | test@gmail.com  |
      

      Example: Find nodes of @professor, whose email is in format xxx@xxx.com or xxx@xxx.cn

      find().nodes({@professor.email =~ "^[a-zA-Z0-9_.-]+@[a-zA-Z0-9]+\.(com|cn)$"}) as n
      return n{*} 
      

      |--------------- @professor --------------|
      |  _id  | _uuid |  age  |       email     |
      |-------|-------|-------|-----------------|
      | P001  |   1   |  53   | test@yahoo.cn   |
      | P002  |   2   |  27   | test@ultipa.com |
      
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