bk commit into 4.1 tree (sergefp:1.2460)

[Sergey Petrunia]

Below is the list of changes that have just been committed into a local
4.1 repository of psergey. When psergey does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
For information on how to access the public repository
see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet
  1.2460 05/10/23 02:49:57 sergefp@stripped +1 -0
  Merge spetrunia@stripped:/home/bk/mysql-4.1
  into mysql.com:/home/psergey/mysql-4.1-nulls-stats-r2

  sql/mysqld.cc
    1.605 05/10/23 02:49:55 sergefp@stripped +0 -0
    Auto merged

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	sergefp
# Host:	newbox.mylan
# Root:	/home/psergey/mysql-4.1-nulls-stats-r2/RESYNC

--- 1.604/sql/mysqld.cc	2005-10-18 20:45:09 +04:00
+++ 1.605/sql/mysqld.cc	2005-10-23 02:49:55 +04:00
@@ -5281,7 +5281,8 @@
    GET_ULONG, REQUIRED_ARG, 8192*1024, 4, ~0L, 0, 1, 0},
   {"myisam_stats_method", OPT_MYISAM_STATS_METHOD,
    "Specifies how MyISAM index statistics collection code should threat NULLs. "
-   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), and
\"nulls_equal\" (emulate 4.0 behavior).",
+   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), "
+   "\"nulls_equal\" (emulate 4.0 behavior), and \"nulls_ignored\".",
    (gptr*) &myisam_stats_method_str, (gptr*) &myisam_stats_method_str, 0,
     GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"net_buffer_length", OPT_NET_BUFFER_LENGTH,
@@ -6475,16 +6476,26 @@
   }
   case OPT_MYISAM_STATS_METHOD:
   {
-    myisam_stats_method_str= argument;
     int method;
+    ulong method_conv;
+    myisam_stats_method_str= argument;
     if ((method=find_type(argument, &myisam_stats_method_typelib, 2)) <= 0)
     {
       fprintf(stderr, "Invalid value of myisam_stats_method: %s.\n", argument);
       exit(1);
     }
-    global_system_variables.myisam_stats_method= 
-      test(method-1)? MI_STATS_METHOD_NULLS_EQUAL : 
-                      MI_STATS_METHOD_NULLS_NOT_EQUAL;
+    switch (method-1) {
+    case 0: 
+      method_conv= MI_STATS_METHOD_NULLS_EQUAL;
+      break;
+    case 1:
+      method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL;
+      break;
+    case 2:
+      method_conv= MI_STATS_METHOD_IGNORE_NULLS;
+      break;
+    }
+    global_system_variables.myisam_stats_method= method_conv;
     break;
   }
   case OPT_SQL_MODE: