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Sylvain Lebresne commented on CASSANDRA-4245:
---------------------------------------------
I'll note that for the comparator itself, this should be pretty simple using
[Collator|http://docs.oracle.com/javase/6/docs/api/java/text/Collator.html].
Comparator can already take arguments, so one could imagine those arguments to
be the ones from
[Locale|http://docs.oracle.com/javase/6/docs/api/java/util/Locale.html] ctor
(we could allow a value-less version that take the current locale but I'm
personally against it as using the system locale is always a crappy idea imo).
There still would be the question of whether we want to add some CQL syntax
shortcut to define such types (something like {{text(local=ES)}} or some
variation), but that can even be left to a followup ticket since even without
it you can use fully qualified comparator names using double quotes anyway.
> Provide a locale/collation-aware text comparator
> ------------------------------------------------
>
> Key: CASSANDRA-4245
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4245
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Ertio Lew
> Assignee: amorton
> Priority: Minor
>
> It is a common use case to use a bunch of entity names as column names & then
> use the row as a search index, using search by range. For such use cases &
> others, it is useful to have a UTF8 comparator that provides case insensitive
> ordering of columns.
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