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From: Csaba Nagy on 3 Jul 2008 10:59
On Thu, 2008-07-03 at 19:56 +0530, cinu wrote:
> Could anyone please tell me where I am going wrong and if there is a
> way I can get the same behaviour that I am getting while I am
> executing the through psql prompt.

You're mistake is that you think a transaction is related to your
terminal, but it is in fact tied to the psql session you are running...

Your first example is running one psql instance per terminal, hence one
transaction per terminal, while in your second example the transaction
is terminated each time psql finishes to run. Basically what you're
asking for is to keep a transaction opened by one session (the first
psql execution) and connect to it with the second session (the second
psql call) and continue the transaction which was opened by the first
one... which I'm pretty sure is wrong to want. It is likely possible to
do (using PREPARE TRANSACTION), but even likelier that it is a wrong
thing to do in normal circumstances. If you'll say what you really want
to do, I bet you'll get a lot more useful advices...

Cheers,
Csaba.



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From: Gregory Stark on 3 Jul 2008 11:09

"cinu" <cheriyamoozhiyilcinu(a)yahoo.co.in> writes:

Could anyone please tell me where I am going wrong and if there is a way I can get the same behaviour that I am getting while I am executing the through psql prompt.

a) you might try hitting return occasionally in your email :)

b) you maybe need to put a SELECT pg_sleep(10) between the two queries in the
first file you run so that it hasn't updated both tables and exited before the
second one even starts. But I'm just guessing since you haven't sent the
actual files you're running.

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Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Get trained by Bruce Momjian - ask me about EnterpriseDB's PostgreSQL training!

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