SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 4)
    Identifier arr1
    Identifier o
    Identifier l
    Function arraySlice (children 1)
     ExpressionList (children 3)
      Identifier arr1
      Identifier o
      Identifier l
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier array_functions
