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Add PQfullProtocolVersion() to surface the precise protocol version.

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The existing function PQprotocolVersion() does not include the minor
version of the protocol.  In preparation for pending work that will
bump that number for the first time, add a new function to provide it
to clients that may care, using the (major * 10000 + minor)
convention already used by PQserverVersion().

Jacob Champion based on earlier work by Jelte Fennema-Nio

Discussion: http://postgr.es/m/CAOYmi+mM8+6Swt1k7XsLcichJv8xdhPnuNv7-02zJWsezuDL+g@mail.gmail.com
This commit is contained in:
Robert Haas
2024-09-09 11:54:55 -04:00
parent 5bbdfa8a18
commit cdb6b0fdb0
4 changed files with 47 additions and 9 deletions
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10
src/interfaces/libpq/fe-connect.c
View File

@@ -7158,6 +7158,16 @@ PQprotocolVersion(const PGconn *conn)
return PG_PROTOCOL_MAJOR(conn->pversion);
}
int
PQfullProtocolVersion(const PGconn *conn)
{
if (!conn)
return 0;
if (conn->status == CONNECTION_BAD)
return 0;
return PG_PROTOCOL_FULL(conn->pversion);
}
int
PQserverVersion(const PGconn *conn)
{

5
src/interfaces/libpq/libpq-fe.h
View File

@@ -56,6 +56,10 @@ extern "C"
/* Indicates presence of PQsocketPoll, PQgetCurrentTimeUSec */
#define LIBPQ_HAS_SOCKET_POLL 1
/* Features added in PostgreSQL v18: */
/* Indicates presence of PQfullProtocolVersion */
#define LIBPQ_HAS_FULL_PROTOCOL_VERSION 1
/*
* Option flags for PQcopyResult
*/
@@ -393,6 +397,7 @@ extern PGTransactionStatusType PQtransactionStatus(const PGconn *conn);
extern const char *PQparameterStatus(const PGconn *conn,
const char *paramName);
extern int PQprotocolVersion(const PGconn *conn);
extern int PQfullProtocolVersion(const PGconn *conn);
extern int PQserverVersion(const PGconn *conn);
extern char *PQerrorMessage(const PGconn *conn);
extern int PQsocket(const PGconn *conn);