Visualisation Painless script between two characters

[matw (Matthias Wilhelm)]

any field calculated when the query is submitted has worse performance. So scripted fields are disabled on logz.io? here's a discuss issue where someone succeeded using the JSON input, didn't test:

JSON Input vs. Scripted Fields

Hello, I have a requirement to get the average of the sum of two fields in all document and visualize it, something like this: avg("field 1" + "field 2") I have found two ways to do this and curious what the difference is both in terms of "best practices" or performance: Method 1: Create a "scripted field" for the index which would be the SUM of the two required fields stored into a new field (called sum_field1_field2) and get the average of "sum_field1_field2 in metric. Method 2: Create a …

However all approaches have this performance drawback.
Best,
Matthias