| From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
|---|---|
| To: | Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Crash in gist insertion on pathological box data |
| Date: | 2009-04-03 13:08:33 |
| Message-ID: | 49D60A51.1020109@sigaev.ru |
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| Thread: | |
| Lists: | pgsql-hackers |
> Here is a test case that crashes even with the patch:
I was too optimistic :(
Attached patch contains:
- changes in R-tree picksplit methods. Now it checks bad ratio and if so then
use simple split: one half of entries to one page, and another part - to
another page.
- protection from buggy picksplit method: GiST will emit an error if picksplit
of first column has that bug. For second and next column it could be a desired
behaviour, because picksplit may take in attention result of picksplit of
previous column.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
| Attachment | Content-Type | Size |
|---|---|---|
| gist.patch-1.gz | application/x-tar | 1.5 KB |
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