summarise alias

[yesoreyeram]

Description

This PR adds the "summarize alias" option when used with backend parser.

Problem statement

When you have multiple queries with summarize option, all the values will be shown as summary. This makes hard to differentiate the values and also hard to operate when used with grafana merge transformation.

Example: Without alias and merge transformation

Here I am using two different queries. One for returning mean age and another one for mean salary

then I am using merge transformation to merge these two results.

but this is not what I want also Join by field transformation also doesn't give me the result I want.

Solution

The solution here is to use summarize alias in the queries to differentiate the metrics.

then just using the merge transformation should work

[gabor]

LGTM 👍