libpq: Trace all messages received from the server

Not all messages that libpq received from the server would be sent
through our message tracing logic.  This commit tries to fix that by
introducing a new function pqParseDone which make it harder to forget
about doing so.

The messages that we now newly send through our tracing logic are:

- CopyData (received by COPY TO STDOUT)
- Authentication requests
- NegotiateProtocolVersion
- Some ErrorResponse messages during connection startup
- ReadyForQuery when received after a FunctionCall message

Author: Jelte Fennema-Nio <[email protected]>
Discussion: https://postgr.es/m/CAGECzQSoPHtZ4xe0raJ6FYSEiPPS+YWXBhOGo+Y1YecLgknF3g@mail.gmail.com

1 files changed, 1 insertions, 0 deletions

diff --git a/src/interfaces/libpq/libpq-int.h b/src/interfaces/libpq/libpq-int.h
index d97b595c97f..8ed1b28fcc0 100644
--- a/src/interfaces/libpq/libpq-int.h
+++ b/src/interfaces/libpq/libpq-int.h
@@ -753,6 +753,7 @@ extern PGresult *pqFunctionCall3(PGconn *conn, Oid fnid,
   */
 extern int	pqCheckOutBufferSpace(size_t bytes_needed, PGconn *conn);
 extern int	pqCheckInBufferSpace(size_t bytes_needed, PGconn *conn);
+extern void pqParseDone(PGconn *conn, int newInStart);
 extern int	pqGetc(char *result, PGconn *conn);
 extern int	pqPutc(char c, PGconn *conn);
 extern int	pqGets(PQExpBuffer buf, PGconn *conn);