SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab
   Function hasToken (children 1)
    ExpressionList (children 2)
     Function lower (children 1)
      ExpressionList (children 1)
       Identifier text
     Function lower (children 1)
      ExpressionList (children 1)
       Literal \'Hello\'
