crease number of open files to 2048 on windows

Don't do fsync on temporary .frm files


include/config-win.h:
  Increase number of open files to 2048 on windows
sql/unireg.cc:
  Don't do fsync on temporary files

include/config-win.h

@@ -316,7 +316,7 @@ inline double ulonglong2double(ulonglong value)
 #define FN_ROOTDIR	"\\"
 #define FN_NETWORK_DRIVES	/* Uses \\ to indicate network drives */
 #define FN_NO_CASE_SENCE	/* Files are not case-sensitive */
-#define MY_NFILE	1024
+#define MY_NFILE	2048
 
 #define DO_NOT_REMOVE_THREAD_WRAPPERS
 #define thread_safe_increment(V,L) InterlockedIncrement((long*) &(V))

sql/unireg.cc

@@ -150,7 +150,9 @@ int rea_create_table(my_string file_name,
 
   my_free((gptr) screen_buff,MYF(0));
   my_afree((gptr) keybuff);
-  if (opt_sync_frm && my_sync(file, MYF(MY_WME)))
+
+  if (opt_sync_frm && !(create_info->options & HA_LEX_CREATE_TMP_TABLE) &&
+      my_sync(file, MYF(MY_WME)))
     goto err2;
   if (my_close(file,MYF(MY_WME)) ||
       ha_create_table(file_name,create_info,0))