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How do you detect row version changes in PostgreSQL? - Mailing list pgsql-sql

From Craig Manley
Subject How do you detect row version changes in PostgreSQL?
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Msg-id OE7Fsxf4yp8ARf3sllN00000660@hotmail.com
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Responses Re: How do you detect row version changes in PostgreSQL?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi all,
Some databases have a hidden field that contains a row version key.
Everytime an update is performed on a row the value of the version field
changes. Does PostgreSQL have a similar hidden field? If not then I guess
using a before update trigger that modifies a user defined field will
provide an alternative solution.
Greetings,
Craig Manley.

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