Cope with NoData message from backend. Needed for case where

PQexecParams is used with a statement that doesn't return data.

diff --git a/src/interfaces/libpq/fe-protocol3.c b/src/interfaces/libpq/fe-protocol3.c
index 15de69007d1ada8fcecd383768dbb21fc80262fb..cc2546128c58793182957f2d4a3b2c9f5c8d50a2 100644 (file)
--- a/src/interfaces/libpq/fe-protocol3.c
+++ b/src/interfaces/libpq/fe-protocol3.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-protocol3.c,v 1.6 2003/08/04 02:40:20 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-protocol3.c,v 1.7 2003/08/12 21:34:44 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -232,8 +232,7 @@ pqParseInput3(PGconn *conn)
                                        if (pqGetInt(&(conn->be_key), 4, conn))
                                                return;
                                        break;
-                               case 'T':               /* row descriptions (start of query
-                                                                * results) */
+                               case 'T':               /* Row Description */
                                        if (conn->result == NULL)
                                        {
                                                /* First 'T' in a query sequence */
@@ -253,6 +252,17 @@ pqParseInput3(PGconn *conn)
                                                return;
                                        }
                                        break;
+                               case 'n':               /* No Data */
+                                       /*
+                                        * NoData indicates that we will not be seeing a
+                                        * RowDescription message because the statement or
+                                        * portal inquired about doesn't return rows.
+                                        * Set up a COMMAND_OK result, instead of TUPLES_OK.
+                                        */
+                                       if (conn->result == NULL)
+                                               conn->result = PQmakeEmptyPGresult(conn,
+                                                                                                                  PGRES_COMMAND_OK);
+                                       break;
                                case 'D':               /* Data Row */
                                        if (conn->result != NULL &&
                                                conn->result->resultStatus == PGRES_TUPLES_OK)