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 not (children 1)
    ExpressionList (children 1)
     Function hasAnyTokens (children 1)
      ExpressionList (children 2)
       Identifier text
       Literal Array_[\'\']
