| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Gaetano Mendola <mendola(at)bigfoot(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [GENERAL] Backwards index scan |
| Date: | 2003-12-21 16:54:32 |
| Message-ID: | 22848.1072025672@sss.pgh.pa.us |
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| Lists: | pgsql-bugs pgsql-general pgsql-hackers |
Gaetano Mendola <mendola(at)bigfoot(dot)com> writes:
> Tom Lane wrote:
>> I have committed a fix into 7.5devel to do this properly. I think this
>> is the last case wherein btree is unnecessarily inefficient for large
>> numbers of equal keys.
> Any chance to have it on 7.4.1 ?
No. It's inadequately tested to go into a stable release, and anyway
I'm not sure what the interactions are with previous 7.5-only changes
for cross-datatype indexing.
regards, tom lane
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