swamy16 commented on issue #945: Google BigQuery Support
URL: 
https://github.com/apache/incubator-superset/issues/945#issuecomment-385862029
 
 
   @darylerwin  @mistercrunch 
   
   sorry it is a typo from my end. The actual error is SIGALRM as mentioned by 
@mxmzdlv  
   Module 'signal has no attribute 'SIGALRM'
   The table are small (max size in GB's that too <30GB) as of now. But they 
can become big(can be as large as in TB's) in future. How big a dataset can 
Superset handle?
   
   Basically I am able to add tables to superset and am able to visualize them 
in dashboards (Be it tables from bigquery, or the default main db "world bank 
dataset" ) but I am not able to query them (even the main db tables from 
superset sql lab)
   
   
![image](https://user-images.githubusercontent.com/19241632/39504943-c52a8660-4dec-11e8-82cc-0292f04a93ff.png)
   
   
   As you can see the highlighted part in the above image "tsukuyomi" is a 
dataset in my bigquery and "2017_agency_mapping" is a table. I am able to 
create a slice view using tables from my bigquery.
   
   
![image](https://user-images.githubusercontent.com/19241632/39505336-1ea96ace-4def-11e8-9e44-37d71bf03303.png)
   As you can see in the above image I am querying from the main db of the 
default world bank. But it is not able to query the same in sql labs sql editor.
   @mxmzdlv mentioned that this is happening due to SIGALRM not working in 
windows.
   
   But technically shudn't this error also happen when I am creating a slice. 
Since it is effectively running the same query. 
   
   Please let em know if there is a way to solve this error in windows.
   I tried replicate what ASPePeX mentioned in the link you have given 
Unity-Technologies/ml-agents#7
   But I am not able to locate the file in my computer.
   /python/unityagents/environment.py
   I am also not sure if this is the right approach
   

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