View pervious versions of row

[Arnav <justdba03@xxxxxxxxx>]

hi Pgsql-Admin

What is the command to view the previous version of rows (deleted or updated)

I searched and found some functions like : . But none of them are working

 SELECT * FROM page_header(get_raw_page('school',0));

SELECT * FROM heap_page_items(get_raw_page('school',0));
                                  ^

Sorry if the question sounds stupid

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Regards

Ankush

Regards

Arnav