dict0load.c:

  dict_load_table(): detect the new table format of MySQL 5.0.3

innobase/dict/dict0load.c

@@ -647,6 +647,22 @@ dict_load_table(
 		return(NULL);
 	}
 
+#if MYSQL_VERSION_ID < 50300
+	/* Starting from MySQL 5.0.3, the high-order bit of MIX_LEN is the
+	"compact format" flag. */
+	field = rec_get_nth_field(rec, 7, &len);
+	if (mach_read_from_1(field) & 0x80) {
+		btr_pcur_close(&pcur);
+		mtr_commit(&mtr);
+		mem_heap_free(heap);
+		ut_print_timestamp(stderr);
+		fprintf(stderr,
+			"  InnoDB: table %s is in the new compact format\n"
+			"InnoDB: of MySQL 5.0.3 or later\n", name);
+		return(NULL);
+	}
+#endif /* MYSQL_VERSION_ID < 50300 */
+
 	ut_a(0 == ut_strcmp((char *) "SPACE",
 		dict_field_get_col(
 		dict_index_get_nth_field(