| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
| Cc: | Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [COMMITTERS] pgsql-server: Rearrange pg_subtrans handling as |
| Date: | 2004-08-24 03:02:01 |
| Message-ID: | 27284.1093316521@sss.pgh.pa.us |
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Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:
> Just random speculation, but could we use a pg_subtrans-like setup to do
> row share locks?
pg_subtrans is trivial to index --- it's a linear array subscripted by
TransactionId. I'm not sure what we'd do to handle row locks, which
would need a key like (DBoid, RELoid, BlockNum, LineNum) and would be
extremely non-dense in that space.
'Tis something to think about though...
regards, tom lane
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