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Changed compare in MyISAM to use my_pread()

Browse source 
Fixed that @VAR shows all decimals
Fixed problem with FLUSH TABLES and LOCK TABLE
CREATE ... SELECT now creates keys later
Reset AUTO_INCREMENT order if droping AUTO_INCREMENT key


Docs/manual.texi:
  Added MySQL/PostgreSQL comparison
isam/_dynrec.c:
  Fixed wrong compare (not used in MySQL)
myisam/mi_dynrec.c:
  Fixed wrong compare (not used in MySQL).
  Changed compare to use my_pread()
myisam/mi_packrec.c:
  cleanup
mysql-test/r/alter_table.result:
  Added test for ALTER TABLE
mysql-test/r/variables.result:
  Added test for variables with REAL values.
mysql-test/t/alter_table.test:
  Added test for ALTER TABLE
mysql-test/t/variables.test:
  Added test for variables with REAL values.
mysys/my_pread.c:
  Cleanup
sql-bench/Makefile.am:
  removed extra \
sql-bench/README:
  Fixed typo.
sql/item_func.cc:
  Fixed that @VAR shows all decimals
sql/share/swedish/errmsg.OLD:
  update
sql/sql_base.cc:
  Fixed problem with FLUSH TABLES and LOCK TABLE
sql/sql_insert.cc:
  CREATE ... SELECT now creates keys later
sql/sql_table.cc:
  Reset AUTO_INCREMENT order if droping AUTO_INCREMENT key.
BitKeeper/etc/ignore:
  Added sql-bench/graph-compare-results to the ignore list
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
This commit is contained in:
unknown 2001-06-11 15:01:28 +03:00
commit 765940cb3a
18 changed files with 596 additions and 66 deletions
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9
myisam/mi_dynrec.c
View file

@ -1221,20 +1221,19 @@ static int _mi_cmp_buffer(File file, const byte *buff, my_off_t filepos,
char temp_buff[IO_SIZE*2];
DBUG_ENTER("_mi_cmp_buffer");
VOID(my_seek(file,filepos,MY_SEEK_SET,MYF(0)));
next_length= IO_SIZE*2 - (uint) (filepos & (IO_SIZE-1));
while (length > IO_SIZE*2)
{
if (my_read(file,temp_buff,next_length,MYF(MY_NABP)))
if (my_pread(file,temp_buff,next_length,filepos, MYF(MY_NABP)) ||
memcmp((byte*) buff,temp_buff,next_length))
goto err;
if (memcmp((byte*) buff,temp_buff,IO_SIZE))
DBUG_RETURN(1);
filepos+=next_length;
buff+=next_length;
length-= next_length;
next_length=IO_SIZE*2;
}
if (my_read(file,temp_buff,length,MYF(MY_NABP)))
if (my_pread(file,temp_buff,length,filepos,MYF(MY_NABP)))
goto err;
DBUG_RETURN(memcmp((byte*) buff,temp_buff,length));
err: