CreateQuery userid_set2 (children 3)
 Identifier userid_set2
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration userid (children 1)
    DataType UInt64
   ColumnDeclaration name (children 1)
    DataType String
   ColumnDeclaration birthdate (children 1)
    DataType Date
 Storage definition (children 1)
  Function Set
