[TYPO3-v4] List module improvements
Dmitry Dulepov
dmitry.dulepov at gmail.com
Mon Mar 7 15:35:25 CET 2011
Hi!
Jigal van Hemert wrote:
> The opposite is actually true: if there are not enough different pids
> (low cardinality) it is faster to do a full table scan (chances are that
> you need to retrieve a lot of records anyway) than to use an index.
Why would you do a full table scan if the table has a proper index on a
sorting column?
--
Dmitry Dulepov
TYPO3 core&security team member
E-mail: dmitry.dulepov at typo3.org
Web: http://dmitry-dulepov.com/
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