Fix for bug#14271 I_S: columns has no size for (var)binary columns

  set character_octet_length, character_maximum_length for
  binary and varbinary field types

mysql-test/r/information_schema.result

@@ -1067,3 +1067,10 @@ show indexes from t1;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
 t1	1	f1	1	f1	A	NULL	NULL	NULL	YES	BTREE	
 drop table t1;
+create table t1(f1 binary(32), f2 varbinary(64));
+select character_maximum_length, character_octet_length
+from information_schema.columns where table_name='t1';
+character_maximum_length	character_octet_length
+32	32
+64	64
+drop table t1;

mysql-test/t/information_schema.test

@@ -759,3 +759,11 @@ show columns from t1;
 describe t1;
 show indexes from t1;
 drop table t1;
+
+#
+# Bug#14271 I_S: columns has no size for (var)binary columns
+#
+create table t1(f1 binary(32), f2 varbinary(64));
+select character_maximum_length, character_octet_length
+from information_schema.columns where table_name='t1';
+drop table t1;

sql/sql_show.cc

@@ -2616,7 +2616,9 @@ static int get_schema_column_record(THD *thd, struct st_table_list *tables,
     table->field[6]->store((const char*) pos,
                            strlen((const char*) pos), cs);
     is_blob= (field->type() == FIELD_TYPE_BLOB);
-    if (field->has_charset() || is_blob)
+    if (field->has_charset() || is_blob ||
+        field->real_type() == MYSQL_TYPE_VARCHAR ||  // For varbinary type
+        field->real_type() == MYSQL_TYPE_STRING)     // For binary type
     {
       longlong char_max_len= is_blob ? 
         (longlong) field->max_length() / field->charset()->mbminlen :