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https://issues.apache.org/jira/browse/DRILL-3165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14554886#comment-14554886
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Leandro DG commented on DRILL-3165:
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That's amazing Anil, do you have an expected timeline? We'd love to help
beta test.
Thanks!
> Sorting a Mongo table should leverage Mongo Indexes
> ---------------------------------------------------
>
> Key: DRILL-3165
> URL: https://issues.apache.org/jira/browse/DRILL-3165
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - MongoDB
> Affects Versions: 1.0.0
> Reporter: Leandro DG
> Assignee: B Anil Kumar
>
> When doing a query using Mongo, sorting takes place entirely in Drill.
> Getting the first 1000 rows from a 1000000 rows table, sorted by a field
> which has an index takes a long time (about 45 seconds in our test
> environment).
> Sample drill query:
> Select c.name from mongo.foo.json_customers c order by c.name limit 1000
> Doing the same in mongo client takes less than a second.
> Sample mongo query: db.json_customers.find().sort({"name":1}).limit(1000)
> Sorting by a field should leverage the existing mongo indexes if they exist.
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