Add Scale method to QuantileDigest

[skrzypo987]

No description provided.

[martint]

What’s the use case for this?

[skrzypo987]

What’s the use case for this?

Adding a scale method to Trino. We can do it in Trino, but I thought this is the proper place

[martint]

Understood, but what's the use case for having a scale method?

[Praveen2112]

The purpose of the scale method is to scale up or down QDigest summary for a given set of data. Say if we have a summary of an order delivered from point A to point B stored in QDigest, the scale function allows us to extrapolate if the point A or point B diverges or converges.

[Praveen2112]

@martint Do we need any additional information here ?