| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
| Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: CLUSTER ALL syntax |
| Date: | 2002-11-17 22:58:23 |
| Message-ID: | 7961.1037573903@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> writes:
> Actually, I'm planning to do the freelist thing, then the btree
> compaction and then replace the current REINDEX code with the compaction
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> code, probably including some means to do REINDEX ALL.
Uh ... no. The primary purpose of REINDEX is to recover from corrupted
indexes, so it has to be based on a rebuild strategy not a compaction
strategy.
If you want to add a REINDEX ALL for completeness, go ahead, but I think
the need for it will be vanishingly small once vacuum compacts btrees
properly.
regards, tom lane
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