Case insensitivrly has been added in charset and collation names.

mysql-test/r/ctype_collate.result

@@ -528,6 +528,10 @@ SET NAMES latin1 COLLATE latin1_bin;
 SHOW VARIABLES LIKE 'client_collation';
 Variable_name	Value
 client_collation	latin1_bin
+SET NAMES LATIN1 COLLATE Latin1_Bin;
+SHOW VARIABLES LIKE 'client_collation';
+Variable_name	Value
+client_collation	latin1_bin
 SET NAMES 'latin1' COLLATE 'latin1_bin';
 SHOW VARIABLES LIKE 'client_collation';
 Variable_name	Value

mysql-test/t/ctype_collate.test

@@ -135,6 +135,8 @@ SHOW VARIABLES LIKE 'client_collation';
 SELECT charset('a'),collation('a'),coercibility('a'),'a'='A';
 SET NAMES latin1 COLLATE latin1_bin;
 SHOW VARIABLES LIKE 'client_collation';
+SET NAMES LATIN1 COLLATE Latin1_Bin;
+SHOW VARIABLES LIKE 'client_collation';
 SET NAMES 'latin1' COLLATE 'latin1_bin';
 SHOW VARIABLES LIKE 'client_collation';
 SELECT charset('a'),collation('a'),coercibility('a'),'a'='A';

mysys/charset.c

@@ -479,7 +479,7 @@ uint get_charset_number(const char *charset_name)
   
   for (cs= all_charsets; cs < all_charsets+255; ++cs)
   {
-    if ( cs[0] && cs[0]->name && !strcmp(cs[0]->name, charset_name))
+    if ( cs[0] && cs[0]->name && !strcasecmp(cs[0]->name, charset_name))
       return cs[0]->number;
   }  
   return 0;   /* this mimics find_type() */
@@ -593,7 +593,7 @@ CHARSET_INFO *get_charset_by_csname(const char *cs_name,
   for (css= all_charsets; css < all_charsets+255; ++css)
   {
     if ( css[0] && (css[0]->state & cs_flags) && 
-         css[0]->csname && !strcmp(css[0]->csname, cs_name))
+         css[0]->csname && !strcasecmp(css[0]->csname, cs_name))
     {
       cs= css[0]->number ? get_internal_charset(css[0]->number,flags) : NULL;
       break;