"Jack Orenstein" <[EMAIL PROTECTED]> writes:
> I understand that updating a row of t generates a new row version, and
> that different transactions may see different versions of the same
> row.
> How does versioning work for the index?

Each row version has its own index entry pointing to it.  So an update
is not a lot different from an insert --- they both generate a full set
of index entries.

                        regards, tom lane

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