Re: Feature discussion: Should syntax errors abort a transaction?

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От Greg Sabino Mullane
Тема Re: Feature discussion: Should syntax errors abort a transaction?
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Msg-id fb632c3877658162ade7d7ec050d0636@biglumber.com
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Ответ на Feature discussion: Should syntax errors abort a transaction?  (Craig Ringer <craig@postnewspapers.com.au>)
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...
> ON_ERROR_ROLLBACK=interactive provides a helper for that in psql.
>
> Savepoints are overhead, though, and I don't understand why they're
> required for statements that don't even parse.

Other have handled the latter part of the above already (short version:
error is the only sane response to a non-parsing statement), but as
to the first part, the overhead is really not that high. Yes, psql
will create and remove a savepoint around each statement, but this is
a very lightweight action, especially if you are using psql in
interactive mode. In other words, we already have an elegant and
lightweight approach to the described problem.


- --
Greg Sabino Mullane greg@turnstep.com
End Point Corporation http://www.endpoint.com/
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