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From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5302) Analytics Component
Date Tue, 16 Sep 2014 04:52:37 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134951#comment-14134951
] 

Erick Erickson commented on SOLR-5302:
--------------------------------------

Man! If you only knew how long this has been on my back burner....

Thanks! AFAIK this is certainly the consensus approach, then use the pluggable analytics stuff
that Joel put together to support distributed stats.



> Analytics Component
> -------------------
>
>                 Key: SOLR-5302
>                 URL: https://issues.apache.org/jira/browse/SOLR-5302
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Steven Bower
>            Assignee: Erick Erickson
>             Fix For: 5.0
>
>         Attachments: SOLR-5302.patch, SOLR-5302.patch, SOLR-5302.patch, SOLR-5302.patch,
SOLR-5302_contrib.patch, Search Analytics Component.pdf, Statistical Expressions.pdf, solr_analytics-2013.10.04-2.patch
>
>
> This ticket is to track a "replacement" for the StatsComponent. The AnalyticsComponent
supports the following features:
> * All functionality of StatsComponent (SOLR-4499)
> * Field Faceting (SOLR-3435)
> ** Support for limit
> ** Sorting (bucket name or any stat in the bucket
> ** Support for offset
> * Range Faceting
> ** Supports all options of standard range faceting
> * Query Faceting (SOLR-2925)
> * Ability to use overall/field facet statistics as input to range/query faceting (ie
calc min/max date and then facet over that range
> * Support for more complex aggregate/mapping operations (SOLR-1622)
> ** Aggregations: min, max, sum, sum-of-square, count, missing, stddev, mean, median,
percentiles
> ** Operations: negation, abs, add, multiply, divide, power, log, date math, string reversal,
string concat
> ** Easily pluggable framework to add additional operations
> * New / cleaner output format
> Outstanding Issues:
> * Multi-value field support for stats (supported for faceting)
> * Multi-shard support (may not be possible for some operations, eg median)



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