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https://issues.apache.org/jira/browse/SOLR-8466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15136174#comment-15136174
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Mikhail Khludnev commented on SOLR-8466:
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Hi,
Ok. I looked on it once again. if {{facet.version=2}} is specified, it adds one
more response elements from JSON facets. Thus, workaround shortens:
# to get old good UnInvertedField perfomance you don't need to change
parameters to JSON, but just specify {{facet.version=2}}
# and remove {{FacetComponent}} from handler's components, leaving
{{FacetModule}} there.
# However, response format is different and an app should be changed to consume
one that makes the issue still sensible
{code}
facet_counts={facet_queries={},facet_fields={key1={foo=1},key2={bar=1}},facet_dates={},facet_ranges={},facet_intervals={},facet_heatmaps={}},
{code}
vs
{code}
facets={count=2,key1={buckets=[{val=foo,count=1}]},key2={buckets=[{val=bar,count=1}]}}
{code}
> Add support for UnInvertedField based faceting to FacetComponent
> ----------------------------------------------------------------
>
> Key: SOLR-8466
> URL: https://issues.apache.org/jira/browse/SOLR-8466
> Project: Solr
> Issue Type: New Feature
> Components: Facet Module, faceting
> Affects Versions: 5.0, 5.1, 5.2, 5.2.1, 5.3, 5.3.1, 5.4
> Reporter: Jamie Johnson
> Assignee: Mikhail Khludnev
> Attachments: 8466.diff, SOLR-8466.patch, SOLR-8466.patch
>
>
> The new JSON Faceting API supports building an UnInvertedField to do faceting
> which would be beneficial to add to Solr FacetComponent. This would provide
> additional options to implementors to choose the appropriate method of
> faceting for their particular use case.
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