diff options
author | unknown <jani@hynda.mysql.fi> | 2007-06-27 17:49:12 +0300 |
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committer | unknown <jani@hynda.mysql.fi> | 2007-06-27 17:49:12 +0300 |
commit | 5444b55cbbab69a508e6c477a1b9580eff969da1 (patch) | |
tree | eb82a0418f88b83d49bf66dfc659d59862535683 /include/my_handler.h | |
parent | e34641b3cece714b861c7130f245659342f583ba (diff) | |
parent | 1a96259191b193b353387cbb70d7567009e3b247 (diff) | |
download | mariadb-git-5444b55cbbab69a508e6c477a1b9580eff969da1.tar.gz |
Merge jamppa@bk-internal.mysql.com:/home/bk/mysql-5.1
into hynda.mysql.fi:/home/my/mysql-maria
BitKeeper/etc/ignore:
auto-union
Makefile.am:
Auto merged
BUILD/SETUP.sh:
Auto merged
BitKeeper/deleted/.del-init_db.sql~a77d572c39d5a1f8:
Auto merged
client/mysqldump.c:
Auto merged
include/Makefile.am:
Auto merged
include/m_string.h:
Auto merged
include/my_base.h:
Auto merged
include/my_dbug.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
libmysql/Makefile.shared:
Auto merged
libmysqld/Makefile.am:
Auto merged
mysql-test/include/varchar.inc:
Auto merged
mysql-test/lib/mtr_cases.pl:
Auto merged
mysql-test/lib/mtr_io.pl:
Auto merged
mysql-test/lib/mtr_misc.pl:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/lib/mtr_process.pl:
Auto merged
mysql-test/lib/mtr_report.pl:
Auto merged
mysql-test/r/events_logs_tests.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/t/disabled.def:
Auto merged
mysql-test/t/events_logs_tests.test:
Auto merged
mysql-test/t/myisam.test:
Auto merged
mysql-test/t/view.test:
Auto merged
mysys/Makefile.am:
Auto merged
mysys/my_create.c:
Auto merged
mysys/my_handler.c:
Auto merged
mysys/my_init.c:
Auto merged
mysys/my_open.c:
Auto merged
mysys/safemalloc.c:
Auto merged
plugin/daemon_example/daemon_example.cc:
Auto merged
sql/Makefile.am:
Auto merged
sql/filesort.cc:
Auto merged
sql/gen_lex_hash.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/handler.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/opt_range.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/slave.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_test.cc:
Auto merged
sql/udf_example.c:
Auto merged
sql/uniques.cc:
Auto merged
sql/unireg.cc:
Auto merged
storage/csv/ha_tina.cc:
Auto merged
storage/myisam/ft_boolean_search.c:
Auto merged
storage/myisam/ft_nlq_search.c:
Auto merged
storage/myisam/ft_parser.c:
Auto merged
storage/myisam/ft_stopwords.c:
Auto merged
storage/myisam/ft_update.c:
Auto merged
storage/myisam/fulltext.h:
Auto merged
storage/myisam/ha_myisam.h:
Auto merged
storage/myisam/mi_checksum.c:
Auto merged
storage/myisam/mi_create.c:
Auto merged
storage/myisam/mi_delete.c:
Auto merged
storage/myisam/mi_delete_all.c:
Auto merged
storage/myisam/mi_key.c:
Auto merged
storage/myisam/mi_log.c:
Auto merged
storage/myisam/mi_open.c:
Auto merged
storage/myisam/mi_range.c:
Auto merged
storage/myisam/mi_rkey.c:
Auto merged
storage/myisam/mi_rsamepos.c:
Auto merged
storage/myisam/mi_search.c:
Auto merged
storage/myisam/mi_test1.c:
Auto merged
storage/myisam/mi_test2.c:
Auto merged
storage/myisam/mi_unique.c:
Auto merged
storage/myisam/mi_update.c:
Auto merged
storage/myisam/myisamlog.c:
Auto merged
storage/myisam/myisampack.c:
Auto merged
storage/myisam/rt_index.c:
Auto merged
storage/myisam/sort.c:
Auto merged
storage/myisam/sp_test.c:
Auto merged
storage/myisammrg/ha_myisammrg.h:
Auto merged
storage/ndb/src/mgmapi/mgmapi.cpp:
Auto merged
unittest/Makefile.am:
Auto merged
BitKeeper/triggers/post-commit:
Manual merge from mysql-5.1 to mysql-maria
configure.in:
Manual merge from mysql-5.1 to mysql-maria
include/ft_global.h:
Manual merge from mysql-5.1 to mysql-maria
include/keycache.h:
Manual merge from mysql-5.1 to mysql-maria
include/my_atomic.h:
Manual merge from mysql-5.1 to mysql-maria
include/my_global.h:
Manual merge from mysql-5.1 to mysql-maria
include/my_sys.h:
Manual merge from mysql-5.1 to mysql-maria
include/myisam.h:
Manual merge from mysql-5.1 to mysql-maria
mysys/array.c:
Manual merge from mysql-5.1 to mysql-maria
mysys/mf_keycache.c:
Manual merge from mysql-5.1 to mysql-maria
mysys/mf_keycaches.c:
Manual merge from mysql-5.1 to mysql-maria
mysys/my_pread.c:
Manual merge from mysql-5.1 to mysql-maria
sql/mysqld.cc:
Manual merge from mysql-5.1 to mysql-maria
sql/net_serv.cc:
Manual merge from mysql-5.1 to mysql-maria
sql/set_var.cc:
Manual merge from mysql-5.1 to mysql-maria
sql/set_var.h:
Manual merge from mysql-5.1 to mysql-maria
sql/sql_class.h:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/ft_static.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/ha_myisam.cc:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/mi_check.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/mi_dynrec.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/mi_packrec.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/mi_write.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/myisamchk.c:
Manual merge from mysql-5.1 to mysql-maria
storage/myisam/myisamdef.h:
Manual merge from mysql-5.1 to mysql-maria
storage/myisammrg/ha_myisammrg.cc:
Manual merge from mysql-5.1 to mysql-maria
unittest/mysys/Makefile.am:
Manual merge from mysql-5.1 to mysql-maria
unittest/mysys/my_atomic-t.c:
Manual merge from mysql-5.1 to mysql-maria
Diffstat (limited to 'include/my_handler.h')
-rw-r--r-- | include/my_handler.h | 55 |
1 files changed, 42 insertions, 13 deletions
diff --git a/include/my_handler.h b/include/my_handler.h index d7cd0567f9c..13dcd01a332 100644 --- a/include/my_handler.h +++ b/include/my_handler.h @@ -18,10 +18,30 @@ #ifndef _my_handler_h #define _my_handler_h -#include "my_base.h" -#include "m_ctype.h" #include "myisampack.h" +/* + There is a hard limit for the maximum number of keys as there are only + 8 bits in the index file header for the number of keys in a table. + This means that 0..255 keys can exist for a table. The idea of + HA_MAX_POSSIBLE_KEY is to ensure that one can use myisamchk & tools on + a MyISAM table for which one has more keys than MyISAM is normally + compiled for. If you don't have this, you will get a core dump when + running myisamchk compiled for 128 keys on a table with 255 keys. +*/ + +#define HA_MAX_POSSIBLE_KEY 255 /* For myisamchk */ +/* + The following defines can be increased if necessary. + But beware the dependency of HA_MAX_POSSIBLE_KEY_BUFF and HA_MAX_KEY_LENGTH. +*/ + +#define HA_MAX_KEY_LENGTH 1000 /* Max length in bytes */ +#define HA_MAX_KEY_SEG 16 /* Max segments for key */ + +#define HA_MAX_POSSIBLE_KEY_BUFF (HA_MAX_KEY_LENGTH + 24+ 6+6) +#define HA_MAX_KEY_BUFF (HA_MAX_KEY_LENGTH+HA_MAX_KEY_SEG*6+8+8) + typedef struct st_HA_KEYSEG /* Key-portion */ { CHARSET_INFO *charset; @@ -38,33 +58,35 @@ typedef struct st_HA_KEYSEG /* Key-portion */ } HA_KEYSEG; #define get_key_length(length,key) \ -{ if ((uchar) *(key) != 255) \ - length= (uint) (uchar) *((key)++); \ +{ if (*(uchar*) (key) != 255) \ + length= (uint) *(uchar*) ((key)++); \ else \ - { length=mi_uint2korr((key)+1); (key)+=3; } \ + { length= mi_uint2korr((key)+1); (key)+=3; } \ } #define get_key_length_rdonly(length,key) \ -{ if ((uchar) *(key) != 255) \ - length= ((uint) (uchar) *((key))); \ +{ if (*(uchar*) (key) != 255) \ + length= ((uint) *(uchar*) ((key))); \ else \ - { length=mi_uint2korr((key)+1); } \ + { length= mi_uint2korr((key)+1); } \ } #define get_key_pack_length(length,length_pack,key) \ -{ if ((uchar) *(key) != 255) \ - { length= (uint) (uchar) *((key)++); length_pack=1; }\ +{ if (*(uchar*) (key) != 255) \ + { length= (uint) *(uchar*) ((key)++); length_pack= 1; }\ else \ - { length=mi_uint2korr((key)+1); (key)+=3; length_pack=3; } \ + { length=mi_uint2korr((key)+1); (key)+= 3; length_pack= 3; } \ } #define store_key_length_inc(key,length) \ { if ((length) < 255) \ - { *(key)++=(length); } \ + { *(key)++= (length); } \ else \ { *(key)=255; mi_int2store((key)+1,(length)); (key)+=3; } \ } +#define size_to_store_key_length(length) ((length) < 255 ? 1 : 3) + #define get_rec_bits(bit_ptr, bit_ofs, bit_len) \ (((((uint16) (bit_ptr)[1] << 8) | (uint16) (bit_ptr)[0]) >> (bit_ofs)) & \ ((1 << (bit_len)) - 1)) @@ -81,7 +103,7 @@ typedef struct st_HA_KEYSEG /* Key-portion */ #define clr_rec_bits(bit_ptr, bit_ofs, bit_len) \ set_rec_bits(0, bit_ptr, bit_ofs, bit_len) -extern int mi_compare_text(CHARSET_INFO *, uchar *, uint, uchar *, uint , +extern int ha_compare_text(CHARSET_INFO *, uchar *, uint, uchar *, uint , my_bool, my_bool); extern int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a, register uchar *b, uint key_length, uint nextflag, @@ -89,4 +111,11 @@ extern int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a, extern HA_KEYSEG *ha_find_null(HA_KEYSEG *keyseg, uchar *a); +/* + Inside an in-memory data record, memory pointers to pieces of the + record (like BLOBs) are stored in their native byte order and in + this amount of bytes. +*/ +#define portable_sizeof_char_ptr 8 + #endif /* _my_handler_h */ |