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ldap filter order
Hello,
I have
10 000 objects with attributeA=john
and
100 of these objects has also attributeB=mary
both attributes are indexed.
Does it make any difference between
(&(attributeA=john)(attributeB=mary))
vs.
(&(attributeB=mary)(attributeA=john))
I bet it is better to exclude john-matched objects
from the set of 100 mary-matched objects, than
exclude 100 mary-matched objects from the set
of 10 000 john-matched objects, is that right?
In other words - does it make sens to order complicated
filters to match possible low-volume results from the left,
and high-volume sets on the right?
This, of course, apply to AND filters only.
Regards,
DT
--
http://dtpw.pl/buell [ 25th anniversary of Buell - American Motorcycles ]
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