Andres Freund <and...@2ndquadrant.com> writes:
> since the mvcc catalog patch has gone in we require all users of
> systable_* to be in a valid transaction since the snapshot is copied via
> CopySnapshot() in RegisterSnapshot().
It never has been, and never will be, allowed to call the catcache code
without being in a transaction. What do you think will happen if the
requested row isn't in cache? A table access, that's what, and that
absolutely requires being in a transaction.
regards, tom lane
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