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https://issues.apache.org/jira/browse/SOLR-5079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandro Mario Zbinden updated SOLR-5079:
---------------------------------------
Description:
To save network traffic it would be great to now how many entries a facet list
contains without loading the complete facet list. This issue is created because
of an out of memory in loading the pivot facet with facet.limit set to -1.
The facet.pivot result would then look like
q=facet.pivot=cat,id&*facet.pivot.ngroup=true*
{code:xml}
<arr name="cat,id">
<lst>
<str name="field">cat/str>
<str name="value">a</str>
<int name="count">20</int>
<arr name="pivot">
<lst>
<str name="field">id</str>
<int name="value">69</int>
<int name="count">10</int>
</lst>
<lst>
<str name="field">id</str>
<int name="value">71</int>
<int name="count">10</int>
</lst>
*<int name="ngroup">2</int>* <-- The new ngroup parm
</lst>
</arr>
{code}
If you add another new param for example facet.pivot.visible the
result could create less traffic
especially if there are a lot of ids and the param facet.limit=-1 is set
q=facet.pivot=cat,id&*facet.ngroup=true&f.id.facet.pivot.visible=false*
{code:xml}
<arr name="cat,id">
<lst>
<str name="field">cat/str>
<str name="value">a</str>
<int name="count">20</int>
<!-- No pivot list of id -->
<int name="ngroup">2</int>
</lst>
</arr>
{code}
was:
To save network traffic it would be great to now how many entries a facet list
contains without loading the complete facet list. This issue is created because
of an out of memory in loading the pivot facet with facet.limit set to -1.
The facet.pivot result would then look like
*q=facet.pivot=cat,id&facet.pivot.ngroup=true*
{code:xml}
<arr name="cat,id">
<lst>
<str name="field">cat/str>
<str name="value">a</str>
<int name="count">20</int>
<arr name="pivot">
<lst>
<str name="field">id</str>
<int name="value">69</int>
<int name="count">10</int>
</lst>
<lst>
<str name="field">id</str>
<int name="value">71</int>
<int name="count">10</int>
</lst>
<int name="ngroup">2</int> <-- The new ngroup parm
</lst>
</arr>
{code}
If you add another new param for example facet.pivot.visible the
result could create less traffic
especially if there are a lot of ids and the param facet.limit=-1 is set
*q=facet.pivot=cat,id&facet.ngroup=true&f.id.facet.pivot.visible=false*
{code:xml}
<arr name="cat,id">
<lst>
<str name="field">cat/str>
<str name="value">a</str>
<int name="count">20</int>
<int name="ngroup">2</int> <-- The new ngroup parm
</lst>
</arr>
{code}
> Create ngroups for pivot faceting
> ---------------------------------
>
> Key: SOLR-5079
> URL: https://issues.apache.org/jira/browse/SOLR-5079
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 5.0, 4.5
> Reporter: Sandro Mario Zbinden
> Labels: facet, pivot
> Attachments: SOLR-5079.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> To save network traffic it would be great to now how many entries a facet
> list contains without loading the complete facet list. This issue is created
> because of an out of memory in loading the pivot facet with facet.limit set
> to -1.
> The facet.pivot result would then look like
> q=facet.pivot=cat,id&*facet.pivot.ngroup=true*
> {code:xml}
> <arr name="cat,id">
> <lst>
> <str name="field">cat/str>
> <str name="value">a</str>
> <int name="count">20</int>
> <arr name="pivot">
> <lst>
> <str name="field">id</str>
> <int name="value">69</int>
> <int name="count">10</int>
> </lst>
> <lst>
> <str name="field">id</str>
> <int name="value">71</int>
> <int name="count">10</int>
> </lst>
> *<int name="ngroup">2</int>* <-- The new ngroup parm
> </lst>
> </arr>
> {code}
> If you add another new param for example facet.pivot.visible the
> result could create less traffic
> especially if there are a lot of ids and the param facet.limit=-1 is set
> q=facet.pivot=cat,id&*facet.ngroup=true&f.id.facet.pivot.visible=false*
> {code:xml}
> <arr name="cat,id">
> <lst>
> <str name="field">cat/str>
> <str name="value">a</str>
> <int name="count">20</int>
> <!-- No pivot list of id -->
> <int name="ngroup">2</int>
> </lst>
> </arr>
> {code}
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