ut0byte.h, ut0byte.c, dict0dict.c:

  Make column names non-case-sensitive in referential constraints and put table and database names there in lower case in Windows

innobase/dict/dict0dict.c

@@ -1761,9 +1761,8 @@ dict_scan_col(
 		col = dict_table_get_nth_col(table, i);
 
 		if (ut_strlen(col->name) == (ulint)(ptr - old_ptr)
-		    && 0 == ut_memcmp(col->name, old_ptr,
+		    && 0 == ut_cmp_in_lower_case(col->name, old_ptr,
 						(ulint)(ptr - old_ptr))) {
-
 		    	/* Found */
 
 		    	*success = TRUE;
@@ -1827,11 +1826,20 @@ dict_scan_table_name(
 				break;
 			}
 		}
-
+#ifdef __WIN__
+		ut_cpy_in_lower_case(second_table_name + i, old_ptr,
+				     ptr - old_ptr);
+#else
 		ut_memcpy(second_table_name + i, old_ptr, ptr - old_ptr);
+#endif
 		second_table_name[i + (ptr - old_ptr)] = '\0';
 	} else {
+#ifdef __WIN__
+		ut_cpy_in_lower_case(second_table_name, old_ptr,
+				     ptr - old_ptr);
+#else
 		ut_memcpy(second_table_name, old_ptr, ptr - old_ptr);
+#endif
 		second_table_name[dot_ptr - old_ptr] = '/';
 		second_table_name[ptr - old_ptr] = '\0';
 	}

innobase/include/ut0byte.h

@@ -220,6 +220,26 @@ ut_bit_set_nth(
 	ulint	a,	/* in: ulint */
 	ulint	n,	/* in: nth bit requested */
 	ibool	val);	/* in: value for the bit to set */
+/****************************************************************
+Copies a string to a memory location, setting characters to lower case. */
+
+void
+ut_cpy_in_lower_case(
+/*=================*/
+        char*   dest,    /* in: destination */
+	char*   source,  /* in: source */
+        ulint   len);     /* in: string length */
+/****************************************************************
+Compares two strings when converted to lower case. */
+
+int
+ut_cmp_in_lower_case(
+/*=================*/
+		        /* out: -1, 0, 1 if str1 < str2, str1 == str2,
+			str1 > str2, respectively */
+       char*   str1,    /* in: string1 */
+       char*   str2,    /* in: string2 */
+       ulint   len);     /* in: length of both strings */
 
 
 #ifndef UNIV_NONINL

innobase/ut/ut0byte.c

@@ -30,3 +30,46 @@ ut_dulint_sort(dulint* arr, dulint* aux_arr, ulint low, ulint high)
 				ut_dulint_cmp);
 }
 
+/****************************************************************
+Copies a string to a memory location, setting characters to lower case. */
+
+void
+ut_cpy_in_lower_case(
+/*=================*/
+        char*   dest,  /* in: destination */
+	char*   source,/* in: source */
+        ulint   len)   /* in: string length */
+{
+        ulint i;
+
+	for (i = 0; i < len; i++) {
+	        dest[i] = tolower(source[i]);
+	}
+}
+
+/****************************************************************
+Compares two strings when converted to lower case. */
+
+int
+ut_cmp_in_lower_case(
+/*=================*/
+		       /* out: -1, 0, 1 if str1 < str2, str1 == str2,
+		       str1 > str2, respectively */
+       char*   str1,   /* in: string1 */
+       char*   str2,   /* in: string2 */
+       ulint   len)    /* in: length of both strings */
+{
+       ulint i;
+
+       for (i = 0; i < len; i++) {
+	       if (tolower(str1[i]) < tolower(str2[i])) {
+		       return(-1);
+	       }
+
+	       if (tolower(str1[i]) > tolower(str2[i])) {
+	               return(1);
+	       }
+       }
+
+       return(0);
+}