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https://issues.apache.org/jira/browse/SOLR-939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12679282#action_12679282
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Shalin Shekhar Mangar commented on SOLR-939:
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bq. Right - it made sense to me to go through the FunctionQuery/ValueSource
abstraction to do range filters, as it's a superset of just going off of the
FieldCache (it could work with functions, FileFloatSource, and future payload
or column-stored fields too).
Very cool!
bq. It would be nice if one could tag a field with info to use
ValueSourceRangeFilter for any range queries
As an extra attribute in the schema? e.g.
{code:xml}
<field name="xyz" type="integer" indexed="true" stored="true"
useValueSourceRangeFilter="true" />
{code}
+1 for this. It is easier/cleaner than the local param syntax but I guess we'd
need to support both anyway. Solrj does not have API methods to manipulate
local params and I think this is a good time to add that support.
bq. I've been meaning to get back to this patch... at a minimum it would need
support for all of the field types as well as tests. I think I may even have
some local updates since this last patch - I'll have to check.
Can you post your updates? SOLR-940 (Trie support) is mostly done and I can try
to spend some time on this one. Per the 1.4 release discussion, these two are
the major features stopping the 1.4 release, though I'm sure we'll find more :)
> ValueSourceRangeFilter/Query
> ----------------------------
>
> Key: SOLR-939
> URL: https://issues.apache.org/jira/browse/SOLR-939
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Assignee: Yonik Seeley
> Fix For: 1.4
>
> Attachments: SOLR-939.patch
>
>
> Ability to do a range query based on a FieldCache entry or a FunctionQuery
> (ValueSource).
> Equivalent to Lucene's FieldCacheRangeQuery
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