druid

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History

Zoltan Haindrich 7b869fd37a

Change type of AVG aggregates to double (#15089 )

The sql standard is not very restrictive regarding this:

If AVG is specified and DT is exact numeric, then the declared type of the result is an implemen-
tation-defined exact numeric type with precision not less than the precision of DT and scale not
less than the scale of DT.

so; using the same type is also ok (without patch);
however the avg of 0 and 1 is 0 right now because of the retention of the integer typ

Postgres,MySql and Oracle and Drill seem to increase precision ; mssql returns 0
http://sqlfiddle.com/#!9/6f7248/1

I think we should also increase precision as its already calculated more precisely

2023-10-07 18:01:09 +05:30

src

Change type of AVG aggregates to double (#15089 )

2023-10-07 18:01:09 +05:30

pom.xml

Prepare master branch for next release, 28.0.0 (#14595 )

2023-07-18 09:22:30 +05:30

README.md

update links datasketches.github.io to datasketches.apache.org (#10107 )

2020-07-01 14:56:17 -07:00

README.md

This module provides Druid aggregators based on https://datasketches.apache.org/.

Credits: This module is a result of feedback and work done by following people.

https://github.com/cheddar https://github.com/himanshug https://github.com/leerho https://github.com/will-lauer