> Ann wrote: > I found the reason of this question and fixed the bug :)) >
> Why then don't you share it ?
em ,because i make a stupid mistake in programming!! :((
I made use of transactions to ensure database consistency, and then, i called PQexec() to begin,commit or rollback a transaction, but ignored clearing the PGresult pointer that was returned by PQexec().......
I was afraid of others dissipating their energies in it,so, i declared i fixed the bug.
Thank you to pay attention to my question.Thanks very much!!