SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier functional_index_mergetree
   Function not (children 1)
    ExpressionList (children 1)
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier x
       Literal Float64_7.49
