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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-5045) Pluggable Analytics
Date Thu, 18 Jul 2013 17:36:49 GMT

     [ https://issues.apache.org/jira/browse/SOLR-5045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joel Bernstein updated SOLR-5045:
---------------------------------

    Description: 
This ticket provides a pluggable aggregation framework through the introduction of a new *Aggregator*
interface and a new search component called the *AggregatorComponent*.

The *Aggregator* interface extends the PostFilter interface providing methods that allow DelegatingCollectors
to perform aggregation at collect time. Aggregators were designed to play nicely with the
CollapsingQParserPlugin introduced in SOLR-5027. 

The *AggregatorComponent* manages the output and distributed merging of aggregate results.

This ticket is an alternate design to SOLR-4465 which had the same basic idea but a very different
implementation. This implementation resolves the caching issues in SOLR-4465 and combined
with SOLR-5027 plays nicely with field collapsing. It is also much less intrusive on the core
code as it's entirely implemented with plugins.

Initial Syntax for the sample SumQParserPlugin Aggregator:

../select?q=\*:\*&wt=xml&indent=true&fq=\{!sum field=popularity id=mysum\}&aggregate=true

fq=\{!sum field=popularity id=mysum\} - Calls the SumQParserPlugin telling it to sum the field
popularity.

aggregate=true  - turns on the AggregatorComponent













  was:
This ticket provides a pluggable aggregation framework through the introduction of a new *Aggregator*
interface and a new search component called the *AggregatorComponent*.

The *Aggregator* interface extends the PostFilter interface providing methods that allow DelegatingCollectors
to perform aggregation at collect time. Aggregators were designed to play nicely with the
CollapsingQParserPlugin introduced in SOLR-5027. 

The *AggregatorComponent* manages the output and distributed merging of aggregate results.

This ticket is an alternate design to SOLR-4465 which had the same basic idea but a very different
implementation. This implementation resolves the caching issues in SOLR-4465 and combined
with SOLR-5027 plays nicely with field collapsing. It is also much less intrusive on the core
code as it's entirely implemented with plugins.

Initial Syntax for the sample SumQParserPlugin Aggregator:

../select?q=*:*&wt=xml&indent=true&fq=\{!sum field=popularity id=mysum\}&aggregate=true

fq=\{!sum field=popularity id=mysum\} - Calls the SumQParserPlugin telling it to sum the field
popularity.

aggregate=true  - turns on the AggregatorComponent













    
> Pluggable Analytics
> -------------------
>
>                 Key: SOLR-5045
>                 URL: https://issues.apache.org/jira/browse/SOLR-5045
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 5.0
>            Reporter: Joel Bernstein
>            Priority: Minor
>             Fix For: 5.0
>
>         Attachments: SOLR-5045.patch, SOLR-5045.patch
>
>
> This ticket provides a pluggable aggregation framework through the introduction of a
new *Aggregator* interface and a new search component called the *AggregatorComponent*.
> The *Aggregator* interface extends the PostFilter interface providing methods that allow
DelegatingCollectors to perform aggregation at collect time. Aggregators were designed to
play nicely with the CollapsingQParserPlugin introduced in SOLR-5027. 
> The *AggregatorComponent* manages the output and distributed merging of aggregate results.
> This ticket is an alternate design to SOLR-4465 which had the same basic idea but a very
different implementation. This implementation resolves the caching issues in SOLR-4465 and
combined with SOLR-5027 plays nicely with field collapsing. It is also much less intrusive
on the core code as it's entirely implemented with plugins.
> Initial Syntax for the sample SumQParserPlugin Aggregator:
> ../select?q=\*:\*&wt=xml&indent=true&fq=\{!sum field=popularity id=mysum\}&aggregate=true
> fq=\{!sum field=popularity id=mysum\} - Calls the SumQParserPlugin telling it to sum
the field popularity.
> aggregate=true  - turns on the AggregatorComponent

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