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-rw-r--r--psycopg/pqpath.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/psycopg/pqpath.c b/psycopg/pqpath.c
index 1474cbf..76e7c24 100644
--- a/psycopg/pqpath.c
+++ b/psycopg/pqpath.c
@@ -606,6 +606,8 @@ pq_tpc_command_locked(connectionObject *conn, const char *cmd, const char *tid,
Dprintf("_pq_tpc_command: pgconn = %p, command = %s",
conn->pgconn, cmd);
+ conn->mark += 1;
+
/* convert the xid into the postgres transaction_id and quote it. */
if (!(etid = psycopg_escape_string((PyObject *)conn, tid, 0, NULL, NULL)))
{ goto exit; }