SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function arraySort (alias gra) (children 1)
     ExpressionList (children 1)
      Function groupArrayArrayMerge (children 1)
       ExpressionList (children 1)
        Identifier grp_aggreg
    Function arraySort (alias grs) (children 1)
     ExpressionList (children 1)
      Function groupArrayArray (children 1)
       ExpressionList (children 1)
        Identifier grp_simple
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier data_02294
   ExpressionList (children 2)
    Identifier a
    Identifier b
   Set
