Hi Tanel,

I have no idea but if you currently have 9 entries in a leaf block and the
10th entry you're about insert causes this type of split, then 9 entries
(the 90% currently in the existing leaf node) remain and the new entry (10%)
goes into the new leaf node.

A 90-10 (%) split.

Possible with small blocks (say 2K) and large index entries (200ish bytes)
when 2K blocks ruled the Oracle seas.

Like I said I have no real idea but it's my theory and makes a good bed-time
story.

Cheers ;)

Richard
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Wednesday, December 10, 2003 12:24 AM


> Hi!
>
> I wonder why does statistic "leaf node 90-10 splits" imply that right-hand
> index leaf block is split as 90-10, not 100-0 as it really is. (tested on
> 9.2.0.4 W2k).
>
> Historical reasons?
>
> Tanel.
>
>
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> Author: Tanel Poder
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