Explain EXPLAIN SYNTAX (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 4)
     Function max (children 1)
      ExpressionList (children 1)
       Function multiply (children 1)
        ExpressionList (children 2)
         Identifier n
         Literal UInt64_2
     Function max (children 1)
      ExpressionList (children 1)
       Function multiply (children 1)
        ExpressionList (children 2)
         Literal UInt64_2
         Identifier n
     Function max (children 1)
      ExpressionList (children 1)
       Function divide (children 1)
        ExpressionList (children 2)
         Identifier n
         Literal UInt64_2
     Function max (children 1)
      ExpressionList (children 1)
       Function divide (children 1)
        ExpressionList (children 2)
         Literal UInt64_1
         Identifier n
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Subquery (children 1)
        SelectWithUnionQuery (children 1)
         ExpressionList (children 1)
          SelectQuery (children 2)
           ExpressionList (children 1)
            Identifier number (alias n)
           TablesInSelectQuery (children 1)
            TablesInSelectQueryElement (children 1)
             TableExpression (children 1)
              Function numbers (children 1)
               ExpressionList (children 1)
                Literal UInt64_10
