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From Rafał Kuć (JIRA) <j...@apache.org>
Subject [jira] Commented: (SOLR-1023) StatsComponent should support dates (and other non-numeric fields)
Date Tue, 14 Jul 2009 19:43:14 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12731070#action_12731070
] 

Rafał Kuć commented on SOLR-1023:
---------------------------------

I should be able to supply a patch adding date support for StatsCommponent and for string
fields too. What I think is what other statistics appart from minimum and maximum would be
usefull ? I`m thinking about count and missing. Any other ideas ?

> StatsComponent should support dates (and other non-numeric fields)
> ------------------------------------------------------------------
>
>                 Key: SOLR-1023
>                 URL: https://issues.apache.org/jira/browse/SOLR-1023
>             Project: Solr
>          Issue Type: New Feature
>    Affects Versions: 1.4
>         Environment: Mac OS 10.5, java version "1.5.0_16"
>            Reporter: Peter Wolanin
>             Fix For: 1.5
>
>
> Currently, the StatsComponent only supports single-value numeric fields:
> http://wiki.apache.org/solr/StatsComponent
> trying to use it with a date field I get an exception like:  java.lang.NumberFormatException:
For input string: "2009-01-27T20:04:04Z"
> trying to use it with a string I get an error 400  "Stats are valid for single valued
numeric values."
> For constructing date facets it would be very useful to be able to get the minimum and
maximum date from a DateField within a set of documents.  In general, it could be useful to
get the minimum and maximum from any field type that can be compared, though that's of less
importance.

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