SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (alias a) (children 1)
       ExpressionList (children 1)
        Literal UInt64_10
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Function numbers (alias b) (children 1)
       ExpressionList (children 1)
        Literal UInt64_11
     TableJoin
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Function numbers (alias c) (children 1)
       ExpressionList (children 1)
        Literal UInt64_12
     TableJoin
