Google Visualization API Query Language: select distinct on Google Sheets

[abb.e.c...@gmail.com]

Hello everybody,

I'm trying to create an URL that performs a query on a Google Sheets file.

I'm using the Google Visualization API Query Language.

I cannot perform a select distinct on a column. 

Here is an example of a simple select on an example file

https://docs.google.com/spreadsheets/d/1NZqbZHRFviVO84Fcx6zn1aS-c96UM8DHTesr1SqCJKQ/gviz/tq?tqx=out:html&tq=select+A+OFFSET+1

Do you have any idea how to do the same query but with distinct values?

Thanks.

Daniele