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