Kevin,
> md5sum of each tuple? As an optional system column (a la oid)?
I am mainly an application programmer working with PostgreSQL. And I
want to point out an additional usefullness of an md5sum of each
tuple: it makes comparing table-contents in replicated / related
databases MUCH more feasible.
I am in the process of adding a user-space "myhash" column to all my
applications tables, filled by a trigger on insert / update. It really
speeds up table comparison across databases; and it is very helpfull
in debugging replications.
Harald
--
GHUM Harald Massa
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Harald Armin Massa
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%s is too gigantic of an industry to bend to the whims of reality