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A comment on Ask HN: Is there a way to efficiently subscribe to an SQL query for changes?. Parent comment

Re:Ask HN: Is there a way to efficiently subscribe to an SQL... by benesch on Friday April 23, 2021 @12:27AM (#26910997)
Yes, exactly. Roughly speaking you'd see something like this:

    (id, text1, text2, timestamp, diff)
    ----
    (42, before, data, Friday April 23 12:27AM, -1)
    (42, after, data, Friday April 23 12:27AM, +1)
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