Description

Only setting which could be done in it is minTopNThreshold

However that config setting value can be overriden by the context variable minTopNThreshold - which is applied in every cases here

Motivation

The query context approach is more flexible:

• can be changed for a single query as well
• could still be set globally via runtime properties

Possibly the whole TopNQueryConfig class can be removed as the class will be empty without this field.