Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> Or, maybe there's a way to throw an error when serializable mode
>> is used rather than when it's requested.
> Couldn't we check and throw an error at the place in transaction
> startup where default_transaction_isolation is copied to the
> active variable?
Wouldn't that leave users stuck if the postgresql.conf set the
default to serializable? Nobody would be able to start a
transaction, even to change the default, would they? If that's the
case, we might as well refuse to start.
Robert's suggestion might be the least of the various evils.
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