[
https://issues.apache.org/jira/browse/LUCENE-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir resolved LUCENE-5797.
---------------------------------
Resolution: Fixed
Fix Version/s: 4.10
> improve speed of norms merging
> ------------------------------
>
> Key: LUCENE-5797
> URL: https://issues.apache.org/jira/browse/LUCENE-5797
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Fix For: 4.10
>
> Attachments: LUCENE-5797.patch
>
>
> Today we use the following procedure:
> * track HashSet<Long> uniqueValues, until it exceeds 256 unique values.
> * convert to array, sort and assign ordinals to each one
> * create encoder map (HashMap<Long,Integer>) to encode each value.
> This results in each value being hashed twice... but the vast majority of the
> time people will just be using single-byte norms and a simple array is enough
> for that range.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
