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https://issues.apache.org/jira/browse/SOLR-6494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14259222#comment-14259222
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Yonik Seeley commented on SOLR-6494:
------------------------------------
I'd heed Erick and Hoss and bring this up on the user list in the form of "how
can I speed up my particular request?"
If you want to understand more of the internals yourself, and why some of your
previous attempts haven't worked, I'd recommend starting with the
ConstantScoreQuery class.
> Query filters applied in a wrong order
> --------------------------------------
>
> Key: SOLR-6494
> URL: https://issues.apache.org/jira/browse/SOLR-6494
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.8.1
> Reporter: Alexander S.
>
> This query:
> {code}
> {
> fq: ["type:Award::Nomination"],
> sort: "score desc",
> start: 0,
> rows: 20,
> q: "*:*"
> }
> {code}
> takes just a few milliseconds, but this one:
> {code}
> {
> fq: [
> "type:Award::Nomination",
> "created_at_d:[* TO 2014-09-08T23:59:59Z]"
> ],
> sort: "score desc",
> start: 0,
> rows: 20,
> q: "*:*"
> }
> {code}
> takes almost 15 seconds.
> I have just ≈12k of documents with type "Award::Nomination", but around half
> a billion with created_at_d field set. And it seems Solr applies the
> created_at_d filter first going through all documents where this field is
> set, which is not very smart.
> I think if it can't do anything better than applying filters in the alphabet
> order it should apply them in the order they were received.
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