Postgres System Columns Explained (ctid, xmin,xmax)

In this video I explain the difference between ctid,xmin and xmax columns in postgres with repeatable read and read committed.

0:00 Intro
2:00 ctid tuple id
7:00 xmin (minimum transaction id) with read committed
8:00 xmin with read committed
13:00 xmin with repeatable read
19:00 xmax (maximum transaction id)
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Видео Postgres System Columns Explained (ctid, xmin,xmax) канала Hussein Nasser