eliot1785 commented on issue #19058:
URL: https://github.com/apache/airflow/issues/19058#issuecomment-1018024044


   I found this when reading the changelogs. I just wanted to make a comment on 
ds/ts/etc... personally I use these variables for things like determining the 
output names of files, like 'myoutput_[ds]_[ts]' (similar to how Airflow 
determines the log file names, I guess). I'm probably not alone in that 
respect. 
   
   So I'm glad that the change was reverted, because otherwise when I had a 
manual run it sounds like I would have overwritten my output for my previous 
run, rather than creating new output files. 
   
   I haven't yet learned about the data_interval feature, but I just wanted to 
say as a user that it would be pretty important to keep the behavior of 
ds/ts/etc stable - changing them would basically be a breaking change. Perhaps 
new context variables could be added for data_interval instead, leaving it up 
to the user which one they want to use.
   


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