SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 4)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t3
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier test_table (alias t1)
     TableJoin
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t1 (alias t2)
     TableJoin
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t2 (alias t3)
     TableJoin
