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From Jaroslaw Rozanski ...@jarekrozanski.eu>
Subject Re: Impact of changing precisionStep on already indexed content
Date Fri, 26 May 2017 20:13:26 GMT
Apologies for dup. Please ignore.

On 26/05/17 18:00, Jaroslaw Rozanski wrote:
> Hi all,
> 
> 
> What is the impact of changing "precisionStep" without re-indexing
> document preceding the change?
> 
> Scenario:
> 
> Assume you have index with field:
> <field name="event" type="tdate" indexed="true" stored="true"/>
> <fieldType name="tdate" class="solr.TrieDateField" precisionStep="6"
> positionIncrementGap="0"/>
> 
> So `tdate` of precision 6. Now let's assume you were to change `tdate`
> to be of precision 8.
> 
> According to [1] the change will affect how many terms will be stored in
> index after type change is in place.
> 
> But will that affect queries and sorting if index contains documents
> with date precisionStep 6 and 8 at the same time?
> 
> Simple test indicates no difference (performance aside) but maybe you
> folks are aware of an edge case here.
> 
> 
> 
> [1]
> https://lucene.apache.org/core/5_5_0/core/org/apache/lucene/search/NumericRangeQuery.html
> 
> 
> 
> 
> Cheers,
> Jarek
> 

-- 
Jaroslaw Rozanski | e: me@jarekrozanski.eu

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