[Zope] Slicing a lazy sequence
miles at jamkit.com
Tue Oct 30 15:45:31 EDT 2007
I'm looking at a performance issue with a site. Part of the problem
seems to be the time taken to load all the attributes to construct a
large number of brain objects.
I think I remember reading somewhere once that if you slice a sequence
of catalog results as follows:
rs = portal_catalog.searchResults(portal_type='my_type')
<dtml-in "portal_catalog.searchResults(portal_type='my_type')" start=10
that this "undoes" the advantage of the lazy sequence, as it has to
iterate over all the items in the sequence to produce the slice.
Is this correct or have I just imagined it - can anyone confirm?! And
if I haven't imagined it, how can I do this more efficiently?
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