Yes of course.
When we run the basic select * from cypher
('test', $$ create (u) return u) as (u agtype), fill_agtype_value() is being
called multiple times.
There are times when its called with the base_addr having the value
"idlabelproperties" and the offset
helps breaking down this string to fill correctly the json object that will be
return to the client. But there
are cases that when the fill_agtype_value() is called, for example when the
node we are creating has
no label, that the offset is 32, which is larger than the length of the
base_addr. Running gdb with
fill_agtype_value() as a breaking point would make it easier to understand what
im trying to say.
________________________________
Από: John Gemignani <[email protected]>
Στάλθηκε: Δευτέρα, 12 Ιουνίου 2023 10:03 μμ
Προς: [email protected] <[email protected]>
Θέμα: Re: Offset and out of bounds
Could you give some example cases?
john
On Mon, Jun 12, 2023 at 11:12 AM Panagiotis Foliadis <[email protected]>
wrote:
> Hey all,
>
> I'm having a hard time understanding the offset functionality in
> fill_agtype_value().
> There are many times when this function is called that the offset is
> greater than the
> length of the base_addr resulting in fetching a value from out of bounds.
> How do the
> out-of-bounds values get initialized and what are we trying to achieve by
> having the offset
> reach for the out-of-bounds values?
>
