Historical Plan & Time

Hello.

I have found that, the following sql is very helpful in finding out the historical (What is in AWR) plan of a given SQL_ID.

select * from table (sys.dbms_xplan.display_awr('&Your_SQL_ID')) ;

But so far I could not figure out, how I can figure out WHEN this plan was in effect. Is there a way, I can corelate this plan to Sysdate or in other words, find out when this plan was in effect?

Thanks for your insight,
Shiva

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