Bug#10932 - Building server with key limit of 128, makes test cases fail

This patch allows to configure MyISAM for 128 indexes per table.
The main problem is the key_map, wich is implemented as an ulonglong.
To get rid of the limit and keep the efficient and flexible
implementation, the highest bit is now used for all upper keys.
This means that the lower keys can be disabled and enabled 
individually as usual and the high keys can only be disabled and
enabled as a block. That way the existing test suite is still
applicable, while more keys work, though slightly less efficient.
To really get more than 64 keys, some defines need to be changed.
Another patch will address this.

1 files changed, 2 insertions, 2 deletions

diff --git a/myisam/myisamdef.h b/myisam/myisamdef.h
index 5688b377d3d..74463ec065a 100644
--- a/myisam/myisamdef.h
+++ b/myisam/myisamdef.h
@@ -676,10 +676,10 @@ extern void _mi_unmap_file(MI_INFO *info);
 extern uint save_pack_length(byte *block_buff,ulong length);
 
 uint mi_state_info_write(File file, MI_STATE_INFO *state, uint pWrite);
-char *mi_state_info_read(char *ptr, MI_STATE_INFO *state);
+char *mi_state_info_read(uchar *ptr, MI_STATE_INFO *state);
 uint mi_state_info_read_dsk(File file, MI_STATE_INFO *state, my_bool pRead);
 uint mi_base_info_write(File file, MI_BASE_INFO *base);
-char *my_n_base_info_read(char *ptr, MI_BASE_INFO *base);
+char *my_n_base_info_read(uchar *ptr, MI_BASE_INFO *base);
 int mi_keyseg_write(File file, const HA_KEYSEG *keyseg);
 char *mi_keyseg_read(char *ptr, HA_KEYSEG *keyseg);
 uint mi_keydef_write(File file, MI_KEYDEF *keydef);