1. it's wrong to use memcpy() for overlapped areas;
2. we use it only once.
During merge to 4.1 will remove a memcpy_overlap() call
from strings/ctype-tis620.c as well in order to fix
bug #10836: ctype_tis620 test failure with ICC-compiled binaries on IA64.
The problem was an ab-use of last_rkey_length.
Formerly we saved the packed key length (of the search key)
in this element. But in certain cases it got replaced by
the (packed) result key length.
Now we use a new element of MI_INFO to save the packed key
length of the search key.
Since 4.1 keys are compared with trailing spaces.
Thus, a "x " key can be inserted between a couple of "x" keys.
The existing code did not take this into account. Though the
comments in the code claimed it did.
Fix for binary collations for MyISAM and HEAP BTREE.
This patch also changes trailing spaces behaviour for
binary collations. Binary collations now have PAD
characteristic too.
Don't read character set files if we are using only the default charset. In most cases the user will not anymore get a warning about missing character set files
Compare strings with space extend instead of space strip. Now the following comparisons holds: "a" == "a " and "a\t" < "a". (Bug #3152).
Note: Because of the above fix, one has to do a REPAIR on any table that has an ascii character < 32 last in a CHAR/VARCHAR/TEXT columns.
Fixed problem with char > 128 in QUOTE() function. (Bug #1868)
Disable creation of symlinks if my_disable_symlink is set
Fixed searching of TEXT with end space. (Bug #1651)
Fixed caching bug in multi-table-update where same table was used twice. (Bug #1711)
Fixed problem with UNIX_TIMESTAMP() for timestamps close to 0. (Bug #1998)
Fixed timestamp.test
Added key cache parameters for midpoint insertion strategy
Many files:
Added midpoint insertion strategy for key cache
mi_test2.c:
Added a parameter to resize_key_cache
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)
Free row buffer cache after each query for MyISAM tables.
Added table join option FORCE INDEX
Fixed core dump bug when connecting with hostname that could not be resolved.
Fixes for embedded server
Made key_cache more configurable
Fixed that one can change key blocksize in MyISAM
A lot of optimizations to make MyISAM slightly faster
Added preliminary handling of symlinks in MyISAM.
When using myisamchk to check tables with --force, don't repair
tables that are marked as 'not closed' if they are ok.
Change fn_format() to use my_real_path and my_symlink
Fixed bug in SELECT db1.table.* FROM db1.table,db2.table
Fixed bug in INSERT DELAYED when doing shutdown and a table was locked
Changed that tmp_table_size =4G-1 means unlimited.
