Bug fix:

http://bugs.mysql.com/bug.php?id=1264

strings/ctype-big5.c

@@ -6243,6 +6243,7 @@ static MY_CHARSET_HANDLER my_charset_big5_handler=
   mbcharlen_big5,
   my_numchars_mb,
   my_charpos_mb,
+  my_lengthsp_8bit,
   my_mb_wc_big5,	/* mb_wc       */
   my_wc_mb_big5,	/* wc_mb       */
   my_caseup_str_mb,

strings/ctype-bin.c

@@ -280,6 +280,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     NULL,			/* mbcharlen     */
     my_numchars_8bit,
     my_charpos_8bit,
+    my_lengthsp_8bit,
     my_mb_wc_bin,
     my_wc_mb_bin,
     my_caseup_str_bin,

strings/ctype-euc_kr.c

@@ -8652,6 +8652,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
   mbcharlen_euc_kr,
   my_numchars_mb,
   my_charpos_mb,
+  my_lengthsp_8bit,
   my_mb_wc_euc_kr,	/* mb_wc   */
   my_wc_mb_euc_kr,	/* wc_mb   */
   my_caseup_str_mb,

strings/ctype-gb2312.c

@@ -5702,6 +5702,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
   mbcharlen_gb2312,
   my_numchars_mb,
   my_charpos_mb,
+  my_lengthsp_8bit,
   my_mb_wc_gb2312,	/* mb_wc      */
   my_wc_mb_gb2312,	/* wc_mb      */
   my_caseup_str_mb,

strings/ctype-gbk.c

@@ -9899,6 +9899,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
   mbcharlen_gbk,
   my_numchars_mb,
   my_charpos_mb,
+  my_lengthsp_8bit,
   my_mb_wc_gbk,
   my_wc_mb_gbk,
   my_caseup_str_mb,

strings/ctype-latin1.c

@@ -180,6 +180,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     NULL,
     my_numchars_8bit,
     my_charpos_8bit,
+    my_lengthsp_8bit,
     my_mb_wc_latin1,
     my_wc_mb_latin1,
     my_caseup_str_8bit,

strings/ctype-simple.c

@@ -1020,12 +1020,23 @@ uint my_charpos_8bit(CHARSET_INFO *cs __attribute__((unused)),
   return pos;
 }
 
+uint my_lengthsp_8bit(CHARSET_INFO *cs __attribute__((unused)),
+		      const char *ptr, uint length)
+{
+  const char *end= ptr+length;
+  while (end > ptr && end[-1] == ' ')
+    end--;
+  return (uint) (end-ptr);
+}
+
+
 MY_CHARSET_HANDLER my_charset_8bit_handler=
 {
     NULL,			/* ismbchar      */
     NULL,			/* mbcharlen     */
     my_numchars_8bit,
     my_charpos_8bit,
+    my_lengthsp_8bit,
     my_mb_wc_8bit,
     my_wc_mb_8bit,
     my_caseup_str_8bit,

strings/ctype-sjis.c

@@ -4486,6 +4486,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
   mbcharlen_sjis,
   my_numchars_mb,
   my_charpos_mb,
+  my_lengthsp_8bit,
   my_mb_wc_sjis,	/* mb_wc */
   my_wc_mb_sjis,	/* wc_mb */
   my_caseup_str_8bit,

strings/ctype-tis620.c

@@ -719,6 +719,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     NULL,		/* mbcharlen */
     my_numchars_8bit,
     my_charpos_8bit,
+    my_lengthsp_8bit,
     my_mb_wc_8bit,	/* mb_wc     */
     my_wc_mb_8bit,	/* wc_mb     */
     my_caseup_str_8bit,

strings/ctype-ucs2.c

@@ -1001,6 +1001,24 @@ uint my_charpos_ucs2(CHARSET_INFO *cs __attribute__((unused)),
   return pos*2;
 }
 
+static
+void my_fill_ucs2(CHARSET_INFO *cs __attribute__((unused)),
+		   char *s, uint l, int fill)
+{
+  for ( ; l >= 2; s[0]= 0, s[1]= fill, s+=2, l-=2);
+}
+
+static
+uint my_lengthsp_ucs2(CHARSET_INFO *cs __attribute__((unused)),
+		      const char *ptr, uint length)
+{
+  const char *end= ptr+length;
+  while (end > ptr+1 && end[-1] == ' ' && end[-2] == '\0')
+    end-=2;
+  return (uint) (end-ptr);
+}
+
+
 
 static MY_COLLATION_HANDLER my_collation_ci_handler =
 {
@@ -1019,6 +1037,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     my_mbcharlen_ucs2,	/* mbcharlen    */
     my_numchars_ucs2,
     my_charpos_ucs2,
+    my_lengthsp_ucs2,
     my_ucs2_uni,	/* mb_wc        */
     my_uni_ucs2,	/* wc_mb        */
     my_caseup_str_ucs2,
@@ -1028,7 +1047,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     my_snprintf_ucs2,
     my_l10tostr_ucs2,
     my_ll10tostr_ucs2,
-    my_fill_8bit,
+    my_fill_ucs2,
     my_strntol_ucs2,
     my_strntoul_ucs2,
     my_strntoll_ucs2,

strings/ctype-ujis.c

@@ -8443,6 +8443,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     mbcharlen_ujis,
     my_numchars_mb,
     my_charpos_mb,
+    my_lengthsp_8bit,
     my_mb_wc_euc_jp,	 /* mb_wc       */
     my_wc_mb_euc_jp,	 /* wc_mb       */
     my_caseup_str_mb,

strings/ctype-utf8.c

@@ -1968,6 +1968,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
     my_mbcharlen_utf8,
     my_numchars_mb,
     my_charpos_mb,
+    my_lengthsp_8bit,
     my_utf8_uni,
     my_uni_utf8,
     my_caseup_str_utf8,