[DATA] How to add delisted and reused tickers?

[agent00jackson]

I am looking to potentially contribute and have been using Sprint Corp stock as a test case on how this database handles delisted and reused symbols. I don't see any re-used tickers in the equities csv, so I am curious on the practices here. Should symbol be n/a but other fields populated? Historical ticker could be valuable information. I found this list of re-used tickers that could be valuable as well:
https://advisor.morningstar.com/AWSOE/Training/SecurityMapping/ReusedTickerSymbols.pdf

[JerBouma]

Hello! My suggestion would be that we add an additional column "delisted" which can be True or False. Then, it is fine that the same ticker occurs multiple times, it would just be an option that you can select whether you want to see the delisted tickers.