Re: [HACKERS] BEGIN vs START TRANSACTION

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От Bruce Momjian
Тема Re: [HACKERS] BEGIN vs START TRANSACTION
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Msg-id 200311100310.hAA3Al428467@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: [HACKERS] BEGIN vs START TRANSACTION  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: [HACKERS] BEGIN vs START TRANSACTION  (Jan Wieck <JanWieck@Yahoo.com>)
Список pgsql-patches
Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Peter Eisentraut wrote:
> >> I object to adding unnecessary complications like that.
>
> > Shouldn't BEGIN and START TRANSACTION have the same mechanics?  The
> > changes to the code were the addition of only one line.  The rest of the
> > patch was docs.
>
> My initial reaction was the same as Peter's, but after seeing the small
> size of the patch I reconsidered.  It seems to make sense that BEGIN
> should be an exact synonym for START TRANSACTION.

Let me give you my logic on this --- if people think of BEGIN and START
TRANSACTION as the same, and they do \h begin, they aren't going to see
the read only and isolation options for START TRANSACTION, and I doubt
they are going to think to look there because they think they are the
same.  That's why I think it is good to add those clauses to BEGIN
WORK/TRANSACTION.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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