mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-04-30 20:25:32 +02:00
Code Issues Projects Releases Packages Wiki Activity

Merge kaamos.(none):/data/src/opt/mysql-5.0-opt

Browse source 
into  kaamos.(none):/data/src/opt/mysql-5.1-opt


sql/field.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/item_timefunc.h:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
mysql-test/r/subselect.result:
  Manual merge.
mysql-test/t/subselect.test:
  Manual merge.
sql/filesort.cc:
  Manual merge.
This commit is contained in:
unknown 2008-01-10 14:35:11 +03:00
commit 1040bea9ae
3 changed files with 44 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

20
sql/filesort.cc
View file

@ -37,7 +37,8 @@ if (my_b_write((file),(uchar*) (from),param->ref_length)) \
static char **make_char_array(char **old_pos, register uint fields,
uint length, myf my_flag);
static BUFFPEK *read_buffpek_from_file(IO_CACHE *buffer_file, uint count);
static byte *read_buffpek_from_file(IO_CACHE *buffer_file, uint count,
byte *buf);
static ha_rows find_all_keys(SORTPARAM *param,SQL_SELECT *select,
uchar * *sort_keys, IO_CACHE *buffer_file,
IO_CACHE *tempfile,IO_CACHE *indexfile);
@ -244,9 +245,10 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
}
else
{
if (!table_sort.buffpek && table_sort.buffpek_len < maxbuffer &&
!(table_sort.buffpek=
(uchar *) read_buffpek_from_file(&buffpek_pointers, maxbuffer)))
if (!(table_sort.buffpek=
(uchar *) read_buffpek_from_file(&buffpek_pointers, maxbuffer,
(table_sort.buffpek_len < maxbuffer ?
NULL : table_sort.buffpek))))
goto err;
buffpek= (BUFFPEK *) table_sort.buffpek;
table_sort.buffpek_len= maxbuffer;
@ -374,14 +376,16 @@ static char **make_char_array(char **old_pos, register uint fields,
/* Read 'count' number of buffer pointers into memory */
static BUFFPEK *read_buffpek_from_file(IO_CACHE *buffpek_pointers, uint count)
static byte *read_buffpek_from_file(IO_CACHE *buffpek_pointers, uint count,
byte *buf)
{
ulong length;
BUFFPEK *tmp;
ulong length= sizeof(BUFFPEK)*count;
byte *tmp= buf;
DBUG_ENTER("read_buffpek_from_file");
if (count > UINT_MAX/sizeof(BUFFPEK))
return 0; /* sizeof(BUFFPEK)*count will overflow */
tmp=(BUFFPEK*) my_malloc(length=sizeof(BUFFPEK)*count, MYF(MY_WME));
if (!tmp)
tmp= (byte *)my_malloc(length, MYF(MY_WME));
if (tmp)
{
if (reinit_io_cache(buffpek_pointers,READ_CACHE,0L,0,0) ||