Datasketches support (quantilesDoubleSketch)

[jln-pl]

Hi!
I see that you have a druid-datasketches extension.

Are you going to add aggregator and post aggregators for quantilesDoubleSketch?

[jbguerraz]

Hello @jln-pl
Thank you for this issue!
We would be happy to support that extension, first of all it would need support on the go-druid side of the plugin, mostly like what was done for tdigest sketch (see grafadruid/go-druid@533761d) and then we would need to add the components in this plugin.
my team and I won't have time (and need) for such extension support in a short to mid term, but I'd be happy to help you contribute that feature! that would be awesome! it requires only minimal coding skills, no rocket science and maybe few hours of effort :) WDYT ?

[jln-pl]

I will try to do it in my spare time ;)

[jbguerraz]

I'll be happy to help @jln-pl ! feel free to ping me on Slack for support :)

[san-san]

With grafadruid/go-druid#60 merged, Am I correct in saying that we only need changes in the plugin components to support quantilesDoubleSketch?

[jbguerraz]

@san-san Yes, we need to add an aggregator component (https://github.com/grafadruid/druid-grafana/tree/master/src/builder/aggregation) and a post aggregation (https://github.com/grafadruid/druid-grafana/tree/master/src/builder/postaggregation) one.

[san-san]

Quick update, I have a working solution that we're testing now. We'll raise a PR shortly. https://github.com/san-san/druid-grafana/releases/tag/v1.3.0_beta if you'd like to try it out.

Note: quantilesDoublesSketchToQuantiles (https://druid.apache.org/docs/latest/development/extensions-core/datasketches-quantiles.html#quantiles) has not been implemented in go-druid.

Once my current change has been accepted and merged I can work on that.

[jbguerraz]

Hello @san-san
Any chance you moved ahead with it ? need some support ?

[jbguerraz]

just in case @san-san if you forgot this but actually made some progress :)