Alvaro, * Alvaro Herrera (alvhe...@2ndquadrant.com) wrote: > What do we need RowSecurityPolicy->policy_id for? It seems to me that > it is only used to determine whether the policy is the "default deny" > one, so that it can later be removed if a hook adds a different one. > This seems contrived as well as under-documented. Why isn't a boolean > flag sufficient?
Thanks for taking a look!
It's also used during relcache updates (see equalPolicy()). That wasn't
originally the case (I had missed adding the necessary bits to relcache
in the original patch), but I wouldn't want to remove that piece now
and, given that it's there, using InvalidOid to indicate when it's the
default-deny policy (and therefore this is no actual Oid) seems
sensible.
Thanks again!
Stephen
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