Hi!
I want to prevent any changes to a tuple if a field of the tuple has a
certain value. Let's say I have a table with column col_1, col_2, col_3.
I want to create something that will prevent updating col_2 and col_3 if
and only if col_1 is say "1".
Can I use a rule to do that. Can I somehow detect in a trigger function
the name of the columns that are updated? If I could do that, it would
be easy to create a trigger that would do the job.
I am also opened to other kind of solutions that you might know of.
Any help will be appreciated ;)
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Szentpáli János
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