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From Christian Reuschling <>
Subject result grouping on all documents
Date Tue, 20 Oct 2015 15:05:33 GMT

we try to get the number of documents for given time slots in the index efficiently.

For this, we query the solr index like this:


for now, the modified field is a number field with trie index (tlong in schema.xml).

We have about 30M documents in the index.

This query works fine, but if the number of group queries gets higher (e.g. 200), the response
gets terribly slow.
As we need only the number of documents per group and never the score, or some other data
of the
documents, we are wondering if there is a faster method to get this information.



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