SysBench patch for MemSQL benchmark, which skips the storage engine detection.

0001-memsql-would-not-satisfy-the-engine-test-so-skip-the.patch

From 81ac1ad630b4d466bdeec58fe367dbf2de595fc2 Mon Sep 17 00:00:00 2001
From: Eric Liang <eric.l.2046@gmail.com>
Date: Thu, 21 Jun 2012 17:44:20 +0800
Subject: [PATCH] memsql would not satisfy the engine test, so skip the detection and use innodb as default

---
 sysbench/drivers/mysql/drv_mysql.c |   29 ++++++++++++++++++-----------
 1 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/sysbench/drivers/mysql/drv_mysql.c b/sysbench/drivers/mysql/drv_mysql.c
index a48e6f6..0f578d8 100644
--- a/sysbench/drivers/mysql/drv_mysql.c
+++ b/sysbench/drivers/mysql/drv_mysql.c
@@ -318,19 +318,26 @@ int mysql_drv_describe(drv_caps_t *caps, const char * table_name)
   DEBUG("mysql_num_fields(%p) = %d", res, num_fields);
   fields = mysql_fetch_fields(res);
   DEBUG("mysql_fetch_fields(%p) = %p", res, fields);
-  for (i = 0; i < num_fields; i++)
-    if (!strcasecmp(fields[i].name, "type") ||
-        !strcasecmp(fields[i].name, "engine"))
-      break;
-  if (i >= num_fields)
-    goto error;
-  
-  row = mysql_fetch_row(res);
-  DEBUG("mysql_fetch_row(%p) = %p", res, row);
-  if (row == NULL || row[i] == NULL)
-    goto error;
+
+  if ( 3 == num_fields ){ //memsql
+      rc = parse_table_engine("InnoDB");
+  }else{      
+      for (i = 0; i < num_fields; i++)
+          if (!strcasecmp(fields[i].name, "type") ||
+              !strcasecmp(fields[i].name, "engine"))
+              break;
+      
+      if (i >= num_fields)
+          goto error;
+  
+      row = mysql_fetch_row(res);
+      DEBUG("mysql_fetch_row(%p) = %p", res, row);
+      if (row == NULL || row[i] == NULL)
+          goto error;
+  
+      rc = parse_table_engine(row[i]);
+  }
   
-  rc = parse_table_engine(row[i]);
   *caps = mysql_drv_caps;
   goto exit;
 
-- 
1.7.0.4