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Re: SELECT * FROM LIMIT 1; is really slow - Mailing list pgsql-hackers
From Christopher Kings-Lynne
Subject Re: SELECT * FROM LIMIT 1; is really slow
Date
Msg-id 40B54621.1070001@familyhealth.com.au
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In response to Re: SELECT * FROM LIMIT 1; is really slow  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: SELECT * FROM LIMIT 1; is really slow  (Tom Lane <tgl@sss.pgh.pa.us>)
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> It wouldn't; you'd need vacuum full to collapse out the dead space.
> You could also try CLUSTER which is faster than VACUUM FULL when most
> of the data has to be moved anyway.  (Some days I think we should dump
> VACUUM FULL, because it's optimized for a case that's no longer very
> interesting...)

Out of interest, is CLUSTER another fast way of truly removing OIDs from 
a table, after going SET WITHOUT OIDS?

Chris

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