SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier dt
    Identifier user_id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier decrypt_null
   Function and (children 1)
    ExpressionList (children 2)
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier user_id
       Literal UInt64_0
     Function equals (children 1)
      ExpressionList (children 2)
       Function decrypt (children 1)
        ExpressionList (children 4)
         Literal \'aes-256-gcm\'
         Identifier encrypted
         Literal \'keykeykeykeykeykeykeykeykeykey02\'
         Identifier iv
       Literal \'value2\'