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libpq: Trace all messages received from the server

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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 <postgres@jeltef.nl>
Discussion: https://postgr.es/m/CAGECzQSoPHtZ4xe0raJ6FYSEiPPS+YWXBhOGo+Y1YecLgknF3g@mail.gmail.com
This commit is contained in:
Alvaro Herrera
2024-08-16 13:23:18 -04:00
parent 6be39d77a7
commit b8b3f861fb
6 changed files with 124 additions and 31 deletions
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1
src/interfaces/libpq/libpq-int.h
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@@ -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);