rumbin commented on issue #7172:
URL: https://github.com/apache/superset/issues/7172#issuecomment-850193699


   I think that we need to see that there are two worlds.
   One ist the one of BI tools where it is very common to only show aggregated 
values.
   Then there is the world of technical users who are used to plotting the 
unaggregated values with tools like Excel, Origin, MATLAB, Python.
   
   The thing is, that these worlds happen to converge at some companies.
   Technical data (shopfloor, production machines) gets stored in Data 
Warehouses together with correlated business data. And people desire to explore 
both with one single tool.
   Technically oriented users, like e.g. product developers or quality 
engineers, might start their investigations on aggregated data but soon need to 
dig down to the unaggregated values in order to see things clearer.
   Very often these people need to plot 2-D scatter plots of two raw dimensions 
for determining the correlation of these dimensions. As a real world example, 
take, e.g. pressure-temperature diagrams, hysteresis plots, current-voltage, 
.... In a technical world these are ubiquitous.
   
   I agree on your concerns regarding the potentially huge amount or returned 
data, @mistercrunch. However, I think that the LIMITs that Superset applies 
anyway will minimize the damage here. We just need to ensure that the user is 
well aware of the applied limit.
   In well-built dashboards the user would need to narrow down the amount of 
data by means of filters until displaying the unaggregated data is really 
useful.
   This can to a certain amount be accomplished by employing Jinja logic, I 
suppose.


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