Re: autocommit vs TRUNCATE et al

>>> ... I think we
>>> should just do an automatic COMMIT if it is the first statement of a
>>> transaction, and if not, throw the same error we used to throw.  We are
>>> performing autocommit for SET at the start of a transaction now anyway,
>>> so it isn't totally strange to do it for TRUNCATE, etc. too.
>> 
>> We can go with the auto-COMMIT idea for statements that are invoked at
>> the outer interactive level,

What I just committed uses your idea of auto-committing TRUNCATE et al,
but now that I review the thread I think that everyone else thought that
that was a dangerous idea.  How do you feel about simply throwing an error
in autocommit-off mode, instead?  (At least it's a localized change now)
        regards, tom lane