Re: Isolation levels READ UNCOMMITTED and REPEATABLE READ

Added to TODO:

* Allow more ISOLATION LEVELS to be accepted, but issue a
warning for them

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Tom Lane wrote:
> Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> > I think we could allow users to set the transaction isolation level to
> > READ UNCOMMITTED or REPEATABLE READ and internally behave like READ
> > COMMITTED or SERIALIZABLE, respectively. The SQL standard seems to allow
> > this:
>
> My reading is that the spec *requires* this. We have not done it
> because there was some feeling that people would be confused if the
> isolation levels appeared to exist but didn't really work as they
> expected. But a notice or something could help address that concern.
>
> regards, tom lane
>
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