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From Tristan Seligmann <mithra...@mithrandi.net>
Subject Re: IllegalArgumentException on query with AbstractCompositeType
Date Sun, 14 Jul 2013 22:52:47 GMT
On Mon, Jul 15, 2013 at 12:26 AM, aaron morton <aaron@thelastpickle.com>wrote:

> Aaron Morton can confirm but I think one problem could be that to create
> an index on a field with small number of possible values is not good.
>
> Yes.
> In cassandra each value in the index becomes a single row in the internal
> secondary index CF. You will end up with a huge row for all the values with
> false.
>
> And in general, if you want a queue you should use a queue.
>

This would seem to conflict with the advice to only use secondary indexes
on fields with low cardinality, not high cardinality. I guess low
cardinality is good, as long as it isn't /too/ low?
-- 
mithrandi, i Ainil en-Balandor, a faer Ambar

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