Unfortunately the Postgres temporal_tables extension is about the first kind not the second kind: "What did the database look like on April 1st?" not "What did

Unfortunately the Postgres temporal_tables extension is about the first kind not the second kind: "What did the database look like on April 1st?" not "What did this customer look like on April 1st?". From your link: > Currently, Temporal Tables Extension supports the system-period temporal tables only. Also here is the same extension on github: https://github.com/arkhipov/temporal_tables https://github.com/arkhipov/temporal_tables