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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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