[HIVE-14473] Druid integration II - ASF JIRA

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Umbrella for the second part of the integration work between Hive and Druid started in ~~HIVE-14217~~.

is part of

HIVE-15571 Support Insert into for druid storage handler

requires

HIVE-14217 Druid integration

1.	Create Druid table without specifying data source	Open	Unassigned
2.	Create datasource in Druid from Hive	Resolved	Jesús Camacho Rodríguez
3.	Support 'having' translation for Druid GroupBy queries	Closed	Slim Bouguerra
4.	Support for average post-aggregation in Druid	Resolved	Unassigned
5.	Support for Druid custom granularities	Open	Unassigned
6.	Support creating vector row batches from Druid	Open	Unassigned
7.	Teach Hive how to create/delete Druid segments	Closed	Slim Bouguerra
8.	Support INSERT OVERWRITE for internal druid datasources.	Closed	Slim Bouguerra
9.	Druid CTAS should support BYTE/SHORT/INT types	Closed	Jesús Camacho Rodríguez
10.	Early bail out when we use CTAS and Druid source already exists	Open	Slim Bouguerra
11.	Make Insert and Create statement Transactional	Closed	Slim Bouguerra
12.	Column pruner should handle DruidQuery	Closed	Nishant Bangarwa
13.	Add pre insert work to give storage handler the possibility to perform pre insert checking	Closed	Slim Bouguerra
14.	Add S3 support for druid storage handler	Resolved	Slim Bouguerra
15.	Parallelization of Select queries in Druid handler	Resolved	Jesús Camacho Rodríguez
16.	Druid CTAS should support DECIMAL type	Closed	Jesús Camacho Rodríguez
17.	Druid query path fails when using LLAP mode	Resolved	Ashutosh Chauhan
18.	Chained Group by support for druid.	Open	Slim Bouguerra