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This proposal is about extending Druid to support multi-stage distributed queries, something that I think will be really exciting and amp up what Druid is capable of.
## Motivation
Today Druid's…
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I have been trying to connect to Apache Pinot using the Python client [pinotdb](https://github.com/python-pinot-dbapi/pinot-dbapi) for quite a while now, to no avail.
I am simply running Pinot as …
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Most SQL databases support `REGEXP_REPLACE` function ([Oracle](https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions130.htm), [Postgres](https://www.postgresql.org/docs/current/functions-ma…
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[Pinot SQL] It seems that non-aggregation group by only works for single value columns. Grouping by multi-value columns throws an exception with error code 200. The exception message from Pinot Contro…
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https://github.com/apache/pinot/runs/7014263352?check_suite_focus=true
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Failures:
```
PinotTaskManagerStatelessTest.testPinotTaskManagerSchedulerWithUpdate:106->validateJob:245 expected [0 */20 * ? * * *] but found [0 */10 * ? * * *]
```
Example run: https://github.…
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**Step to reproduce** :
1. create an offline table with some columns and at least a multi-valued one
2. load some data
3. try this request : `select distinct myMultiValuedColumn from MyTable whe…
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Currently in Pinot we don't have real NULL value support, but use some special default values for NULL. For dimensions, the default value is the minimum value for numeric types, "null" for STRING, emp…
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Follow-up tasks from #8874
fixing todos in datatable/datablock builder, https://github.com/apache/pinot/pull/8926
- [x] better read seeking, collapse `byteBuffer.position(offset); and byteBuffer.…
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https://github.com/apache/pinot/runs/6393195568?check_suite_focus=true