SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Function connection_id (children 1)
     ExpressionList
    Function CONNECTION_ID (children 1)
     ExpressionList
    Function CoNnEcTiOn_Id (children 1)
     ExpressionList
    Function connectionid (children 1)
     ExpressionList
    Function CONNECTIONID (children 1)
     ExpressionList
    Function CoNnEcTiOnId (children 1)
     ExpressionList