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authorunknown <monty@mashka.mysql.fi>2003-04-27 22:12:08 +0300
committerunknown <monty@mashka.mysql.fi>2003-04-27 22:12:08 +0300
commitf22be777341f53b4deb58851828c0733ab5380bf (patch)
tree9cf8ed6360561508fc24e4f8cc90f56282626854 /myisam/mi_search.c
parent3e90ec6a582ec6a39209c00329ed93a7cc639ded (diff)
downloadmariadb-git-f22be777341f53b4deb58851828c0733ab5380bf.tar.gz
Fixed problem when comparing a key for a multi-byte-character set. (bug 152)
Use 0x.... as strings if 'new' mode. (bug 152) Don't report -max on windows when InnoDB is enabled. (bug 332) Reset current_linfo; This could cause a hang when doing PURGE LOGS. Fix for row numbers in EXPLAIN (bug 322) Fix that USE_FRM works for all table types (bug 97) VC++Files/libmysql/libmysql.dsp: Added new source files myisam/mi_key.c: Fixed problem when comparing a key for a multi-byte-character set. myisam/mi_range.c: Fixed problem when comparing a key for a multi-byte-character set. myisam/mi_rkey.c: Fixed problem when comparing a key for a multi-byte-character set. myisam/mi_search.c: Fixed problem when comparing a key for a multi-byte-character set. myisam/mi_test2.c: Fixed printf statements myisam/myisamdef.h: Fixed problem when comparing a key for a multi-byte-character set. myisam/sort.c: Fixed printf statements mysql-test/r/ctype_latin1_de.result: New test results mysql-test/r/join.result: New test results mysql-test/r/repair.result: New test results mysql-test/r/rpl_alter.result: New test results mysql-test/t/ctype_latin1_de-master.opt: --new is needed to get 0x... strings to work properly mysql-test/t/ctype_latin1_de.test: New test for latin1_de mysql-test/t/repair.test: Test of USE_FRM and HEAP tables sql/field.cc: Fixed problem when comparing a key for a multi-byte-character set. sql/item.cc: Use 0x.... as strings if 'new' mode sql/item.h: Use 0x.... as strings if 'new' mode sql/mysqld.cc: Don't report -max on windows when InnoDB is enabled. sql/sql_analyse.cc: Removed unused variable sql/sql_insert.cc: Removed debug message sql/sql_repl.cc: Reset current_linfo; This could cause a hang when doing PURGE LOGS. sql/sql_select.cc: Fix for row numbers in EXPLAIN sql/sql_table.cc: Fix that USE_FRM works for all table types (without strange errors) sql/sql_yacc.yy: Removed compiler warnings.
Diffstat (limited to 'myisam/mi_search.c')
-rw-r--r--myisam/mi_search.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/myisam/mi_search.c b/myisam/mi_search.c
index 41d53e76241..32db69144d8 100644
--- a/myisam/mi_search.c
+++ b/myisam/mi_search.c
@@ -1441,6 +1441,37 @@ uint _mi_keylength(MI_KEYDEF *keyinfo, register uchar *key)
} /* _mi_keylength */
+/*
+ Calculate length of part key.
+
+ Used in mi_rkey() to find the key found for the key-part that was used.
+ This is needed in case of multi-byte character sets where we may search
+ after '0xDF' but find 'ss'
+*/
+
+uint _mi_keylength_part(MI_KEYDEF *keyinfo, register uchar *key,
+ MI_KEYSEG *end)
+{
+ reg1 MI_KEYSEG *keyseg;
+ uchar *start= key;
+
+ for (keyseg=keyinfo->seg ; keyseg != end ; keyseg++)
+ {
+ if (keyseg->flag & HA_NULL_PART)
+ if (!*key++)
+ continue;
+ if (keyseg->flag & (HA_SPACE_PACK | HA_BLOB_PART | HA_VAR_LENGTH))
+ {
+ uint length;
+ get_key_length(length,key);
+ key+=length;
+ }
+ else
+ key+= keyseg->length;
+ }
+ return (uint) (key-start);
+}
+
/* Move a key */
uchar *_mi_move_key(MI_KEYDEF *keyinfo, uchar *to, uchar *from)