Hi all,

I have published a draft AIP to remove the unique constraint on the 
execution_date field of table dag_run in the meta database. This is a 
long-planned todo item from AIP-39 (where we introduced logical date and make 
DAG runs unique on run_id), and we can finally do this compatibility-breaking 
change in 3.0.

Since we have already done the necessary leg work as parts of the previous AIP, 
I expect this to not be particularly controversial. The migrations should be 
mostly smooth as well, from I can tell.

Please let me know what you think.

AIP-83 Remove Execution Date Unique Constraint from DAG Run
https://cwiki.apache.org/confluence/x/SA3OEg

TP

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