SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 3)
    Function toUUID (children 1)
     ExpressionList (children 3)
      Identifier str1
      Literal \'\'
      Literal NULL
    Function toUUID (children 1)
     ExpressionList (children 3)
      Identifier str2
      Literal \'\'
      Literal NULL
    Function toUUID (children 1)
     ExpressionList (children 3)
      Identifier str3
      Literal \'\'
      Literal NULL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier lc_str_uuid