lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Yonik Seeley <>
Subject Re: New Token API was Re: Payloads and TrieRangeQuery
Date Mon, 15 Jun 2009 19:20:58 GMT
On Mon, Jun 15, 2009 at 3:00 PM, Uwe Schindler<> wrote:
> There is a new Attribute called ShiftAttribute (or NumericShiftAttribute),
> when trie range is moved to core. This attribute contains the shifted-away
> bits from the prefix encoded value during trie indexing.

I was wondering about this....
To make use of ShiftAttribute, you need to understand the trie
encoding scheme itself.  If you understood that, you'd be able to look
at the actual token value if you were interested in what shift was
used.  So it's redundant, has a runtime cost, it's not currently used
anywhere, and it's not useful to fields other than Trie.  Perhaps it
shouldn't exist (yet)?


To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message