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https://issues.apache.org/jira/browse/SOLR-264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12506309
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Yonik Seeley commented on SOLR-264:
-----------------------------------
I just attached a draft approach (completely untested, uncommented, etc)
The approach would be to use a dynamic field random_* and then pass the seed
for the random function in the field name. So q=foo&sort=rand_165623
The docids are hashed, including the seed, to get random (but repeatable)
values.
This should satisfy repeatability, cacheability, and sanity (can repeat a
sequence if desired).
Since the SortComparatorSource isn't a singleton in this case, I implemented
hashCode + equals for the queryCache.
> Support 'random' sort order
> ---------------------------
>
> Key: SOLR-264
> URL: https://issues.apache.org/jira/browse/SOLR-264
> Project: Solr
> Issue Type: New Feature
> Reporter: Ryan McKinley
> Priority: Minor
> Attachments: RandomSortField.java, SOLR-264-RandomSortOrder.patch,
> SOLR-264-RandomSortOrder.patch, SOLR-264-RandomSortOrder.patch
>
>
> Support querying for random documents:
> http://localhost:8983/solr/select/?q=*:*&fl=sku&sort=random%20desc
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