Merge moonlight.intranet:/home/tomash/src/mysql_ab/mysql-4.1-bug23383

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.0-bug23383

libmysql/libmysql.c

@@ -2478,6 +2478,8 @@ static my_bool execute(MYSQL_STMT *stmt, char *packet, ulong length)
   NET	*net= &mysql->net;
   char buff[4 /* size of stmt id */ +
             5 /* execution flags */];
+  my_bool res;
+
   DBUG_ENTER("execute");
   DBUG_DUMP("packet", packet, length);
 
@@ -2485,16 +2487,18 @@ static my_bool execute(MYSQL_STMT *stmt, char *packet, ulong length)
   int4store(buff, stmt->stmt_id);		/* Send stmt id to server */
   buff[4]= (char) stmt->flags;
   int4store(buff+5, 1);                         /* iteration count */
-  if (cli_advanced_command(mysql, COM_STMT_EXECUTE, buff, sizeof(buff),
+
+  res= test(cli_advanced_command(mysql, COM_STMT_EXECUTE, buff, sizeof(buff),
                                  packet, length, 1, NULL) ||
-      (*mysql->methods->read_query_result)(mysql))
+            (*mysql->methods->read_query_result)(mysql));
+  stmt->affected_rows= mysql->affected_rows;
+  stmt->server_status= mysql->server_status;
+  stmt->insert_id= mysql->insert_id;
+  if (res)
   {
     set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
     DBUG_RETURN(1);
   }
-  stmt->affected_rows= mysql->affected_rows;
-  stmt->server_status= mysql->server_status;
-  stmt->insert_id= mysql->insert_id;
   DBUG_RETURN(0);
 }
 

libmysqld/lib_sql.cc

@@ -279,24 +279,26 @@ static int emb_stmt_execute(MYSQL_STMT *stmt)
   char header[5];
   MYSQL_DATA *res;
   THD *thd;
+  my_bool res;
 
   int4store(header, stmt->stmt_id);
   header[4]= stmt->flags;
   thd= (THD*)stmt->mysql->thd;
   thd->client_param_count= stmt->param_count;
   thd->client_params= stmt->params;
-  if (emb_advanced_command(stmt->mysql, COM_STMT_EXECUTE,0,0,
+
+  res= test(emb_advanced_command(stmt->mysql, COM_STMT_EXECUTE, 0, 0,
                                  header, sizeof(header), 1, stmt) ||
-      emb_read_query_result(stmt->mysql))
+            emb_read_query_result(stmt->mysql));
+  stmt->affected_rows= stmt->mysql->affected_rows;
+  stmt->insert_id= stmt->mysql->insert_id;
+  stmt->server_status= stmt->mysql->server_status;
+  if (res)
   {
     NET *net= &stmt->mysql->net;
     set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
     DBUG_RETURN(1);
   }
-  stmt->affected_rows= stmt->mysql->affected_rows;
-  stmt->insert_id= stmt->mysql->insert_id;
-  stmt->server_status= stmt->mysql->server_status;
-
   DBUG_RETURN(0);
 }
 

tests/mysql_client_test.c

@@ -15307,6 +15307,83 @@ static void test_bug21726()
 }
 
 
+/*
+  BUG#23383: mysql_affected_rows() returns different values than
+  mysql_stmt_affected_rows()
+
+  Test that both mysql_affected_rows() and mysql_stmt_affected_rows()
+  return -1 on error, 0 when no rows were affected, and (positive) row
+  count when some rows were affected.
+*/
+static void test_bug23383()
+{
+  const char *insert_query= "INSERT INTO t1 VALUES (1), (2)";
+  const char *update_query= "UPDATE t1 SET i= 4 WHERE i = 3";
+  MYSQL_STMT *stmt;
+  my_ulonglong row_count;
+  int rc;
+
+  DBUG_ENTER("test_bug23383");
+  myheader("test_bug23383");
+
+  rc= mysql_query(mysql, "DROP TABLE IF EXISTS t1");
+  myquery(rc);
+
+  rc= mysql_query(mysql, "CREATE TABLE t1 (i INT UNIQUE)");
+  myquery(rc);
+
+  rc= mysql_query(mysql, insert_query);
+  myquery(rc);
+  row_count= mysql_affected_rows(mysql);
+  DIE_UNLESS(row_count == 2);
+
+  rc= mysql_query(mysql, insert_query);
+  DIE_UNLESS(rc != 0);
+  row_count= mysql_affected_rows(mysql);
+  DIE_UNLESS(row_count == (my_ulonglong)-1);
+
+  rc= mysql_query(mysql, update_query);
+  myquery(rc);
+  row_count= mysql_affected_rows(mysql);
+  DIE_UNLESS(row_count == 0);
+
+  rc= mysql_query(mysql, "DELETE FROM t1");
+  myquery(rc);
+
+  stmt= mysql_stmt_init(mysql);
+  DIE_UNLESS(stmt != 0);
+
+  rc= mysql_stmt_prepare(stmt, insert_query, strlen(insert_query));
+  check_execute(stmt, rc);
+
+  rc= mysql_stmt_execute(stmt);
+  check_execute(stmt, rc);
+  row_count= mysql_stmt_affected_rows(stmt);
+  DIE_UNLESS(row_count == 2);
+
+  rc= mysql_stmt_execute(stmt);
+  DIE_UNLESS(rc != 0);
+  row_count= mysql_stmt_affected_rows(stmt);
+  DIE_UNLESS(row_count == (my_ulonglong)-1);
+
+  rc= mysql_stmt_prepare(stmt, update_query, strlen(update_query));
+  check_execute(stmt, rc);
+
+  rc= mysql_stmt_execute(stmt);
+  check_execute(stmt, rc);
+  row_count= mysql_stmt_affected_rows(stmt);
+  DIE_UNLESS(row_count == 0);
+
+  rc= mysql_stmt_close(stmt);
+  check_execute(stmt, rc);
+
+  rc= mysql_query(mysql, "DROP TABLE t1");
+  myquery(rc);
+
+  DBUG_VOID_RETURN;
+}
+
+
 /*
   Read and parse arguments and MySQL options from my.cnf
 */
@@ -15583,6 +15660,7 @@ static struct my_tests_st my_tests[]= {
   { "test_bug15752", test_bug15752 },
   { "test_bug21206", test_bug21206 },
   { "test_bug21726", test_bug21726 },
+  { "test_bug23383", test_bug23383 },
   { 0, 0 }
 };