Peter Eisentraut <[EMAIL PROTECTED]> writes: >> It'd be better to allow ErrorResponse to carry multiple fields. > That's the idea. But I can hardly concatenate the error codes, can I? I > looks as though we need an API where all the messages (errors + notices) > from each query cycle are collected and can be cycled through after > completion. One way to do this that wouldn't involve breaking the protocol is to assign significance to linebreaks in an 'E' message's payload. I think someone proposed this already: ERROR: blah blah CODE: 12345 LOCATION: some/file.c line NNN ie, lines starting with agreed-on keywords would be taken as conveying specific fields. An arrangement like this could still work with plain concatenation of multiple errors. Also, it would work tolerably well when fed to an old application that knows nothing of the convention and just prints out the error string. I'm leery of defining a whole new API that must be used before one gets to see any of the added error information --- that would mean that a lot of people never will see it. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster