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### Affected Version
`2021.11.1-iap`
### Description
When providing multiple sub-groups to `subtotalsSpec`, the Druid docs recommend using the `grouping` aggregator to differentiate between r…
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### Motivation
This proposal is to introduce fine grained config and state resources for better access controls. For example, for a user we may want to allow them the permission to view the status …
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### Motivation
Below talk by @Jinchul81 outlines a way to autoscale druid Middlemanagers by emitting druid metrics -
https://www.slideshare.net/Hadoop_Summit/apache-druid-auto-scaleoutin-for-stream…
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### Motivation
Druid now supports real joins (#8728). Even though this introduced a lot of opportunities to expand the capability of Druid, it is in practice pretty limited yet since we support onl…
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### Affected Version
0.17.1
### Description
When druid-0.17.1 is used, the performance of group by query is worse than druid-0.16.1. When
applylimitpushdowntosegment is set to false in query …
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Will Lookup's data be persisted? If so, where is it saved?
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If I'm accustomed to using a Linked Data Platform (LDP) approach to model my data, I mint lots of stable identifiers to represent objects in the system. For example, in order to describe a PhD Thesis,…
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I get an error when trying to enable Kerberos at Druid (0.20.1) cluster.
This is from router logs:
```
2021-08-26T10:38:10,391 WARN [qtp223566397-107] org.apache.druid.security.kerberos.Kerber…
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I uploaded a file data source (csv below) but got error (much further below):
run_date,contract_month,curve,value
2017-01-01 00:00:00,2017-02-01 00:00:00,c0000,25.7109
2017-01-01 00:00:00,2017-03…
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- [x] first version of Druid connector (https://github.com/prestosql/presto/pull/3522)
- [x] documentation (https://github.com/prestosql/presto/issues/4110)
- [x] full `AbstractTestIntegrationSmoke…