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https://issues.apache.org/jira/browse/SOLR-16758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17718600#comment-17718600
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Kira Traynor commented on SOLR-16758:
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Yes, the baseline I am referring to is the exact same version of Solr 9 as the
patch and not another version of Solr. I will test with cache=false as well.
> GraphQuery Performing Slower in Solr 9
> --------------------------------------
>
> Key: SOLR-16758
> URL: https://issues.apache.org/jira/browse/SOLR-16758
> Project: Solr
> Issue Type: Bug
> Reporter: Kira Traynor
> Priority: Major
> Attachments: GraphQuery.patch, QueryLatencySolrTest.java
>
>
> We found that the changes made in SOLR-14185 with the GraphQuery slowed down
> the performance of the graph join by around 50%. Reverting the changes made
> in that pr to use a `Filter` object to get the `DocIdSet` rather than using a
> `DocIdSetIterator`, sped the query times up in our tests to be more similar
> to what we were seeing with the Solr 8 graph joins.
> The same change was made to the JoinQuery class so possibly slower
> performance can be found there as well.
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