Guys,
 So I haven't got my question answered, thus trying it again ;)
 How do I handle SPI errors properly without rethrowing them or
 using subtransactions ? My current code works (simple PG_CATCH()
 with resseting of error state), but reports reference leaks for
 every failed SPI_exec() call...
 Thanks!
 Best regards,
 Alex Vinogradovs