Yes, its a btree.
Tom Lane schrieb:
> Alexandra Nitzschke <an@clickware.de> writes:
>> We have had a look at the /var/log files, no system crash, kernel panic or messages like this has happened.
>
> What this smells like is a failed page split --- somewhere in the index
> there is a down-link pointing at page 77, but page 77 didn't actually
> get added to the file.
>
> If there was no system crash or hardware misfeasance then that'd
> represent a Postgres bug, but it's difficult to do much about it
> unless you can come up with a reproducible sequence to trigger the bug.
>
> (Also, since you didn't mention otherwise, I assume this is a btree
> index?)
>
> regards, tom lane
>
>
