| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Curtis Faith" <curtis(at)galtcapital(dot)com> |
| Cc: | "'Hannu Krosing'" <hannu(at)tm(dot)ee>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Brain dump: btree collapsing |
| Date: | 2003-02-14 22:33:28 |
| Message-ID: | 11687.1045262008@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Curtis Faith" <curtis(at)galtcapital(dot)com> writes:
>> "Stored in the index"? And how will you do that portably?
> Sorry for the lack of rigorous language. I meant that there would be one
> mutex per index stored in the header or internal data structures
> associated with each index somewhere. Probably in the same structure the
> root node reference for each btree is stored.
Hm. A single lock that must be grabbed for operations anywhere in the
index is a concurrency bottleneck. But maybe we could avoid that.
regards, tom lane
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