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Hi all,
I'm facing a problem with the unfamous:

"idle in transaction"

problem. I'm using the JDBC driver.

Mainly the problem is that the JDBC interface doesn't
provide the method begin() for a transaction, of course this
is not a JDBC postgres interface problem.

Let me explain what happen using the JDBC interface



Client  Side            |    Server Side
- ---------------------------------------------------

1) Open a connection    |    Connection accepted
~                        |                       <- Connection Idle
2) set autocommit false |    begin;
~                        |                       <- Idle in transaction
3) select now();        |    select now();
~                        |                       <- Idle in transaction
4) commit;              |    commit; begin;
~                        |                       <- Idle in transaction
5) select now();        |    select now();
~                        |                       <- Idle in transaction
6) rollback;            |    rollback; begin;
~                        |                       <- Idle in transaction


as you can easily understand there is no window time larger enough with
a connection  idle, I thin that the JDBC behaviour ( with the server I
mean ) is not really correct.

This is what I think it's better:


Client  Side            |    Server Side
- ---------------------------------------------------

1) Open a connection    |    Connection accepted
~                        |                       <- Connection Idle
2) set autocommit false |
~                        |                       <- Connection Idle
3) select now();        |    begin; select now();
~                        |                       <- Idle in transaction
4) commit;              |    commit;
~                        |                       <- Connection Idle
5) select now();        |    begin; select now();
~                        |                       <- Idle in transaction
6) select now();        |    select now();
~                        |                       <- Idle in transaction
7) rollback;            |    rollback;
~                        |                       <- Connection Idle


AS you can see the JDBC driver must do a begin only before the
first statement.

Am I missing something ?





Regards
Gaetano Mendola

















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Thu, 08 Apr 2004 13:49:59 +0200
Gaetano Mendola <mendola@bigfoot.com>
idle in transaction with JDBC interface 