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This commit is contained in:
monty@mysql.com 2004-02-05 18:14:48 +01:00
commit 480b082cf4
27 changed files with 174 additions and 163 deletions
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8
client/mysql.cc
View File

@ -44,7 +44,7 @@
#include <locale.h>
#endif
const char *VER= "14.4";
const char *VER= "14.5";
/* Don't try to make a nice table if the data is too big */
#define MAX_COLUMN_LENGTH 1024
@ -2703,6 +2703,9 @@ com_status(String *buffer __attribute__((unused)),
char *line __attribute__((unused)))
{
const char *status;
char buff[22];
ulonglong id;
tee_puts("--------------", stdout);
usage(1); /* Print version */
if (connected)
@ -2748,6 +2751,9 @@ com_status(String *buffer __attribute__((unused)),
tee_fprintf(stdout, "Server version:\t\t%s\n", mysql_get_server_info(&mysql));
tee_fprintf(stdout, "Protocol version:\t%d\n", mysql_get_proto_info(&mysql));
tee_fprintf(stdout, "Connection:\t\t%s\n", mysql_get_host_info(&mysql));
if ((id= mysql_insert_id(&mysql)))
tee_fprintf(stdout, "Insert id:\t\t%s\n", llstr(id, buff));
tee_fprintf(stdout, "Client characterset:\t%s\n",
charset_info->name);
tee_fprintf(stdout, "Server characterset:\t%s\n", mysql.charset->name);

4
myisam/mi_delete.c
View File

@ -20,10 +20,6 @@
#include "rt_index.h"
#include <assert.h>
#ifdef __WIN__
#include <errno.h>
#endif
static int d_search(MI_INFO *info,MI_KEYDEF *keyinfo,uint comp_flag,
uchar *key,uint key_length,my_off_t page,uchar *anc_buff);
static int del(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key,uchar *anc_buff,

3
myisam/mi_delete_table.c
View File

@ -19,9 +19,6 @@
*/
#include "fulltext.h"
#ifdef __WIN__
#include <errno.h>
#endif
int mi_delete_table(const char *name)
{

3
myisam/mi_extra.c
View File

@ -18,9 +18,6 @@
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
#ifdef __WIN__
#include <errno.h>
#endif
/*
Set options and buffers to optimize table handling

3
myisam/mi_locking.c
View File

@ -22,9 +22,6 @@
*/
#include "myisamdef.h"
#ifdef __WIN__
#include <errno.h>
#endif
/* lock table by F_UNLCK, F_RDLCK or F_WRLCK */

1
myisam/mi_log.c
View File

@ -21,7 +21,6 @@
#include "myisamdef.h"
#if defined(MSDOS) || defined(__WIN__)
#include <errno.h>
#include <fcntl.h>
#ifndef __WIN__
#include <process.h>

3
myisam/mi_page.c
View File

@ -17,9 +17,6 @@
/* Read and write key blocks */
#include "myisamdef.h"
#ifdef __WIN__
#include <errno.h>
#endif
/* Fetch a key-page in memory */

3
myisam/mi_rename.c
View File

@ -19,9 +19,6 @@
*/
#include "fulltext.h"
#ifdef __WIN__
#include <errno.h>
#endif
int mi_rename(const char *old_name, const char *new_name)
{

5
myisam/mi_update.c
View File

@ -19,11 +19,6 @@
#include "fulltext.h"
#include "rt_index.h"
#ifdef __WIN__
#include <errno.h>
#endif
int mi_update(register MI_INFO *info, const byte *oldrec, byte *newrec)
{
int flag,key_changed,save_errno;

4
myisam/mi_write.c
View File

@ -20,10 +20,6 @@
#include "rt_index.h"
#include <assert.h>
#ifdef __WIN__
#include <errno.h>
#endif
#define MAX_POINTER_LENGTH 8
/* Functions declared in this file */

2
mysql-test/r/rpl_until.result
View File

@ -31,7 +31,7 @@ n
4
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master
# 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 332 master-bin.000001 Yes No 0 0 244 649 Master master-bin.000001 244 No #
# 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 # master-bin.000001 Yes No 0 0 244 # Master master-bin.000001 244 No #
start slave until master_log_file='master-no-such-bin.000001', master_log_pos=291;
select * from t1;
n

4
mysql-test/r/subselect.result
View File

@ -1340,8 +1340,8 @@ a
explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL a 5 NULL 4 Using where; Using index
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 Using index
2 DEPENDENT SUBQUERY t1 ref a a 10 func,test.t3.a 1000 Using where; Using index
2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 Using where; Using index
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 Using where; Using index
Warnings:
Note 1003 select high_priority test.t2.a AS `a` from test.t2 where <in_optimizer>(test.t2.a,<exists>(select 1 AS `Not_used` from test.t1 join test.t3 where ((test.t1.b = test.t3.a) and (<cache>(test.t2.a) = test.t1.a)) limit 1))
insert into t1 values (3,31);

6
mysql-test/t/rpl_until.test
View File

@ -29,7 +29,7 @@ sleep 2;
# here table should be still not deleted
select * from t1;
--replace_result $MASTER_MYPORT MASTER_MYPORT
--replace_column 1 # 33 #
--replace_column 1 # 9 # 23 # 33 #
show slave status;
# this should fail right after start
@ -59,9 +59,9 @@ stop slave;
# this should stop immideately
start slave until master_log_file='master-bin.000001', master_log_pos=561;
sleep 2;
--real-sleep 2;
# here the sql slave thread should be stopped
--replace_result $MASTER_MYPORT MASTER_MYPORT
--replace_result $MASTER_MYPORT MASTER_MYPORT bin.000005 bin.000004 bin.000006 bin.000004 bin.000007 bin.000004
--replace_column 1 # 9 # 23 # 33 #
show slave status;

14
mysys/charset.c
View File

@ -537,15 +537,15 @@ static CHARSET_INFO *get_internal_charset(uint cs_number, myf flags)
while we may changing the cs_info_table
*/
pthread_mutex_lock(&THR_LOCK_charset);
cs= all_charsets[cs_number];
if (cs && !(cs->state & MY_CS_COMPILED) && !(cs->state & MY_CS_LOADED))
if ((cs= all_charsets[cs_number]))
{
strxmov(get_charsets_dir(buf), cs->csname, ".xml", NullS);
my_read_charset_file(buf,flags);
if (!(cs->state & MY_CS_COMPILED) && !(cs->state & MY_CS_LOADED))
{
strxmov(get_charsets_dir(buf), cs->csname, ".xml", NullS);
my_read_charset_file(buf,flags);
}
cs= (cs->state & MY_CS_AVAILABLE) ? cs : NULL;
}
cs= (cs && cs->state & MY_CS_AVAILABLE) ? cs : NULL;
pthread_mutex_unlock(&THR_LOCK_charset);
return cs;
}

15
sql/item_cmpfunc.cc
View File

@ -1657,26 +1657,19 @@ Item_cond::Item_cond(THD *thd, Item_cond *item)
and_tables_cache(item->and_tables_cache)
{
/*
here should be following text:
List_iterator_fast<Item*> li(item.list);
while(Item *it= li++)
list.push_back(it);
but it do not need,
because this constructor used only for AND/OR and
argument list will be copied by copy_andor_arguments call
item->list will be copied by copy_andor_arguments() call
*/
}
void Item_cond::copy_andor_arguments(THD *thd, Item_cond *item)
{
List_iterator_fast<Item> li(item->list);
while(Item *it= li++)
while (Item *it= li++)
list.push_back(it->copy_andor_structure(thd));
}
bool
Item_cond::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
{

4
sql/item_cmpfunc.h
View File

@ -929,7 +929,7 @@ public:
Item* copy_andor_structure(THD *thd)
{
Item_cond_and *item;
if((item= new Item_cond_and(thd, this)))
if ((item= new Item_cond_and(thd, this)))
item->copy_andor_arguments(thd, this);
return item;
}
@ -950,7 +950,7 @@ public:
Item* copy_andor_structure(THD *thd)
{
Item_cond_or *item;
if((item= new Item_cond_or(thd, this)))
if ((item= new Item_cond_or(thd, this)))
item->copy_andor_arguments(thd, this);
return item;
}

10
sql/item_func.cc
View File

@ -2648,9 +2648,15 @@ longlong Item_func_inet_aton::val_int()
}
if (c != '.') // IP number can't end on '.'
{
/*
Handle short-forms addresses according to standard. Examples:
127 -> 0.0.0.127
127.1 -> 127.0.0.1
127.2.1 -> 127.2.0.1
*/
switch (dot_count) {
case 1: result<<= 8; /* fall through */
case 2: result<<= 8; /* fall through */
case 1: result<<= 8; /* Fall through */
case 2: result<<= 8; /* Fall through */
}
return (result << 8) + (ulonglong) byte_result;
}

2
sql/mysqld.cc
View File

@ -4619,7 +4619,7 @@ The minimum value for this variable is 4096.",
(gptr*) &max_system_variables.net_wait_timeout, 0, GET_ULONG,
REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
{"expire_logs_days", OPT_EXPIRE_LOGS_DAYS,
"Logs will be rotated after expire-log-days days ",
"Binary logs will be rotated after expire-log-days days ",
(gptr*) &expire_logs_days,
(gptr*) &expire_logs_days, 0, GET_ULONG,
REQUIRED_ARG, 0, 0, 99, 0, 1, 0},

21
sql/opt_range.cc
View File

@ -370,14 +370,25 @@ SQL_SELECT::SQL_SELECT() :quick(0),cond(0),free_cond(0)
}
SQL_SELECT::~SQL_SELECT()
void SQL_SELECT::cleanup()
{
delete quick;
quick= 0;
if (free_cond)
{
free_cond=0;
delete cond;
cond= 0;
}
close_cached_file(&file);
}
SQL_SELECT::~SQL_SELECT()
{
cleanup();
}
#undef index // Fix for Unixware 7
QUICK_SELECT::QUICK_SELECT(THD *thd, TABLE *table, uint key_nr, bool no_alloc)
@ -2195,6 +2206,7 @@ check_quick_select(PARAM *param,uint idx,SEL_ARG *tree)
param->table->quick_rows[key]=records;
param->table->quick_key_parts[key]=param->max_key_part+1;
}
DBUG_PRINT("exit", ("Records: %lu", (ulong) records));
DBUG_RETURN(records);
}
@ -2569,12 +2581,7 @@ int QUICK_SELECT::get_next()
int result;
if (range)
{ // Already read through key
/* result=((range->flag & EQ_RANGE) ?
file->index_next_same(record, (byte*) range->min_key,
range->min_length) :
file->index_next(record));
*/
result=((range->flag & (EQ_RANGE | GEOM_FLAG) ) ?
result=((range->flag & (EQ_RANGE | GEOM_FLAG)) ?
file->index_next_same(record, (byte*) range->min_key,
range->min_length) :
file->index_next(record));

1
sql/opt_range.h
View File

@ -127,6 +127,7 @@ class SQL_SELECT :public Sql_alloc {
SQL_SELECT();
~SQL_SELECT();
void cleanup();
bool check_quick(THD *thd, bool force_quick_range, ha_rows limit)
{ return test_quick_select(thd, key_map(~0), 0, limit, force_quick_range) < 0; }
inline bool skip_record() { return cond ? cond->val_int() == 0 : 0; }

10
sql/set_var.cc
View File

@ -2629,11 +2629,6 @@ ulong fix_sql_mode(ulong sql_mode)
MODE_IGNORE_SPACE |
MODE_NO_KEY_OPTIONS | MODE_NO_TABLE_OPTIONS |
MODE_NO_FIELD_OPTIONS);
if (sql_mode & MODE_MSSQL)
sql_mode|= (MODE_PIPES_AS_CONCAT | MODE_ANSI_QUOTES |
MODE_IGNORE_SPACE |
MODE_NO_KEY_OPTIONS | MODE_NO_TABLE_OPTIONS |
MODE_NO_FIELD_OPTIONS);
if (sql_mode & MODE_POSTGRESQL)
sql_mode|= (MODE_PIPES_AS_CONCAT | MODE_ANSI_QUOTES |
MODE_IGNORE_SPACE |
@ -2644,11 +2639,6 @@ ulong fix_sql_mode(ulong sql_mode)
MODE_IGNORE_SPACE |
MODE_NO_KEY_OPTIONS | MODE_NO_TABLE_OPTIONS |
MODE_NO_FIELD_OPTIONS);
if (sql_mode & MODE_DB2)
sql_mode|= (MODE_PIPES_AS_CONCAT | MODE_ANSI_QUOTES |
MODE_IGNORE_SPACE |
MODE_NO_KEY_OPTIONS | MODE_NO_TABLE_OPTIONS |
MODE_NO_FIELD_OPTIONS);
if (sql_mode & MODE_MAXDB)
sql_mode|= (MODE_PIPES_AS_CONCAT | MODE_ANSI_QUOTES |
MODE_IGNORE_SPACE |

2
sql/slave.cc
View File

@ -2682,7 +2682,7 @@ static int exec_relay_log_event(THD* thd, RELAY_LOG_INFO* rli)
rli->is_until_satisfied())
{
sql_print_error("Slave SQL thread stopped because it reached its"
" UNTIL position");
" UNTIL position %ld", (long) rli->until_pos());
/*
Setting abort_slave flag because we do not want additional message about
error in query execution to be printed.

5
sql/slave.h
View File

@ -324,6 +324,11 @@ typedef struct st_relay_log_info
/* Check if UNTIL condition is satisfied. See slave.cc for more. */
bool is_until_satisfied();
inline ulonglong until_pos()
{
return ((until_condition == UNTIL_MASTER_POS) ? group_master_log_pos :
group_relay_log_pos);
}
} RELAY_LOG_INFO;

2
sql/sql_acl.cc
View File

@ -2549,7 +2549,7 @@ my_bool grant_init(THD *org_thd)
do
{
GRANT_TABLE *mem_check;
if (!(mem_check=new GRANT_TABLE(t_table,c_table)) || mem_check->ok())
if (!(mem_check=new GRANT_TABLE(t_table,c_table)) || !mem_check->ok())
{
/* This could only happen if we are out memory */
grant_option= FALSE; /* purecov: deadcode */

110
sql/sql_class.cc
View File

@ -677,12 +677,24 @@ bool select_send::send_eof()
}
/***************************************************************************
** Export of select to textfile
***************************************************************************/
/************************************************************************
Handling writing to file
************************************************************************/
void select_to_file::send_error(uint errcode,const char *err)
{
::send_error(thd,errcode,err);
if (file > 0)
{
(void) end_io_cache(&cache);
(void) my_close(file,MYF(0));
(void) my_delete(path,MYF(0)); // Delete file on error
file= -1;
}
}
select_export::~select_export()
select_to_file::~select_to_file()
{
if (file >= 0)
{ // This only happens in case of error
@ -690,17 +702,42 @@ select_export::~select_export()
(void) my_close(file,MYF(0));
file= -1;
}
}
/***************************************************************************
** Export of select to textfile
***************************************************************************/
select_export::~select_export()
{
thd->sent_row_count=row_count;
}
static int create_file(THD *thd, char *path, sql_exchange *exchange,
File *file, IO_CACHE *cache)
/*
Create file with IO cache
SYNOPSIS
create_file()
thd Thread handle
path File name
exchange Excange class
cache IO cache
RETURN
>= 0 File handle
-1 Error
*/
static File create_file(THD *thd, char *path, sql_exchange *exchange,
IO_CACHE *cache)
{
uint option= 4;
File file;
uint option= MY_UNPACK_FILENAME;
#ifdef DONT_ALLOW_FULL_LOAD_DATA_PATHS
option|= 1; // Force use of db directory
option|= MY_REPLACE_DIR; // Force use of db directory
#endif
(void) fn_format(path, exchange->file_name, thd->db ? thd->db : "", "",
option);
@ -710,35 +747,32 @@ static int create_file(THD *thd, char *path, sql_exchange *exchange,
return 1;
}
/* Create the file world readable */
if ((*file= my_create(path, 0666, O_WRONLY, MYF(MY_WME))) < 0)
return 1;
if ((file= my_create(path, 0666, O_WRONLY, MYF(MY_WME))) < 0)
return file;
#ifdef HAVE_FCHMOD
(void) fchmod(*file, 0666); // Because of umask()
(void) fchmod(file, 0666); // Because of umask()
#else
(void) chmod(path, 0666);
#endif
if (init_io_cache(cache, *file, 0L, WRITE_CACHE, 0L, 1, MYF(MY_WME)))
if (init_io_cache(cache, file, 0L, WRITE_CACHE, 0L, 1, MYF(MY_WME)))
{
my_close(*file, MYF(0));
my_close(file, MYF(0));
my_delete(path, MYF(0)); // Delete file on error, it was just created
*file= -1;
end_io_cache(cache);
return 1;
return -1;
}
return 0;
return file;
}
int
select_export::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
{
char path[FN_REFLEN];
bool blob_flag=0;
unit= u;
if ((uint) strlen(exchange->file_name) + NAME_LEN >= FN_REFLEN)
strmake(path,exchange->file_name,FN_REFLEN-1);
if (create_file(thd, path, exchange, &file, &cache))
if ((file= create_file(thd, path, exchange, &cache)) < 0)
return 1;
/* Check if there is any blobs in data */
{
@ -910,14 +944,6 @@ err:
}
void select_export::send_error(uint errcode, const char *err)
{
::send_error(thd,errcode,err);
(void) my_close(file,MYF(0));
file= -1;
}
bool select_export::send_eof()
{
int error=test(end_io_cache(&cache));
@ -935,24 +961,12 @@ bool select_export::send_eof()
***************************************************************************/
select_dump::~select_dump()
{
if (file >= 0)
{ // This only happens in case of error
(void) end_io_cache(&cache);
(void) my_close(file,MYF(0));
file= -1;
}
}
int
select_dump::prepare(List<Item> &list __attribute__((unused)),
SELECT_LEX_UNIT *u)
{
unit= u;
if (create_file(thd, path, exchange, &file, &cache))
return 1;
return 0;
return (int) ((file= create_file(thd, path, exchange, &cache)) < 0);
}
@ -995,13 +1009,6 @@ err:
}
void select_dump::send_error(uint errcode,const char *err)
{
::send_error(thd,errcode,err);
(void) my_close(file,MYF(0));
file= -1;
}
bool select_dump::send_eof()
{
int error=test(end_io_cache(&cache));
@ -1013,11 +1020,13 @@ bool select_dump::send_eof()
return error;
}
select_subselect::select_subselect(Item_subselect *item_arg)
{
item= item_arg;
}
bool select_singlerow_subselect::send_data(List<Item> &items)
{
DBUG_ENTER("select_singlerow_subselect::send_data");
@ -1040,6 +1049,7 @@ bool select_singlerow_subselect::send_data(List<Item> &items)
DBUG_RETURN(0);
}
bool select_max_min_finder_subselect::send_data(List<Item> &items)
{
DBUG_ENTER("select_max_min_finder_subselect::send_data");
@ -1145,8 +1155,9 @@ bool select_exists_subselect::send_data(List<Item> &items)
/***************************************************************************
** Dump of select to variables
Dump of select to variables
***************************************************************************/
int select_dumpvar::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
{
List_iterator_fast<Item> li(list);
@ -1163,7 +1174,8 @@ int select_dumpvar::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
{
ls= gl++;
Item_func_set_user_var *xx = new Item_func_set_user_var(*ls,item);
xx->fix_fields(thd,(TABLE_LIST*) thd->lex->select_lex.table_list.first,&item);
xx->fix_fields(thd,(TABLE_LIST*) thd->lex->select_lex.table_list.first,
&item);
xx->fix_length_and_dec();
vars.push_back(xx);
}

58
sql/sql_class.h
View File

@ -962,41 +962,45 @@ public:
};
class select_export :public select_result {
sql_exchange *exchange;
File file;
IO_CACHE cache;
ha_rows row_count;
uint field_term_length;
int field_sep_char,escape_char,line_sep_char;
bool fixed_row_size;
public:
select_export(sql_exchange *ex) :exchange(ex),file(-1),row_count(0L) {}
~select_export();
int prepare(List<Item> &list, SELECT_LEX_UNIT *u);
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_data(List<Item> &items);
void send_error(uint errcode,const char *err);
bool send_eof();
};
class select_dump :public select_result {
class select_to_file :public select_result {
protected:
sql_exchange *exchange;
File file;
IO_CACHE cache;
ha_rows row_count;
char path[FN_REFLEN];
public:
select_dump(sql_exchange *ex) :exchange(ex),file(-1),row_count(0L)
select_to_file(sql_exchange *ex) :exchange(ex), file(-1),row_count(0L)
{ path[0]=0; }
~select_dump();
int prepare(List<Item> &list, SELECT_LEX_UNIT *u);
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_data(List<Item> &items);
~select_to_file();
bool send_fields(List<Item> &list, uint flag) { return 0; }
void send_error(uint errcode,const char *err);
};
class select_export :public select_to_file {
uint field_term_length;
int field_sep_char,escape_char,line_sep_char;
bool fixed_row_size;
public:
select_export(sql_exchange *ex) :select_to_file(ex) {}
~select_export();
int prepare(List<Item> &list, SELECT_LEX_UNIT *u);
bool send_data(List<Item> &items);
bool send_eof();
};
class select_dump :public select_to_file {
sql_exchange *exchange;
File file;
IO_CACHE cache;
ha_rows row_count;
public:
select_dump(sql_exchange *ex) :select_to_file(ex) {}
int prepare(List<Item> &list, SELECT_LEX_UNIT *u);
bool send_data(List<Item> &items);
bool send_eof();
};

34
sql/sql_select.cc
View File

@ -1648,8 +1648,8 @@ static ha_rows get_quick_record_count(THD *thd, SQL_SELECT *select,
{
select->head=table;
table->reginfo.impossible_range=0;
if ((error=select->test_quick_select(thd, *(key_map *)keys,(table_map) 0,limit))
== 1)
if ((error=select->test_quick_select(thd, *(key_map *)keys,(table_map) 0,
limit)) == 1)
DBUG_RETURN(select->quick->records);
if (error == -1)
{
@ -2700,22 +2700,35 @@ find_best(JOIN *join,table_map rest_tables,uint idx,double record_count,
do
{
uint keypart=keyuse->keypart;
uint found_part_ref_or_null= KEY_OPTIMIZE_REF_OR_NULL;
table_map best_part_found_ref= 0;
double best_prev_record_reads= DBL_MAX;
do
{
if (!(rest_tables & keyuse->used_tables) &&
!(found_ref_or_null & keyuse->optimize))
{
found_part|=keyuse->keypart_map;
found_ref|= keyuse->used_tables;
double tmp= prev_record_reads(join,
(found_ref |
keyuse->used_tables));
if (tmp < best_prev_record_reads)
{
best_part_found_ref= keyuse->used_tables;
best_prev_record_reads= tmp;
}
if (rec > keyuse->ref_table_rows)
rec= keyuse->ref_table_rows;
found_part_ref_or_null&= keyuse->optimize;
/*
If there is one 'key_column IS NULL' expression, we can
use this ref_or_null optimsation of this field
*/
found_ref_or_null|= (keyuse->optimize &
KEY_OPTIMIZE_REF_OR_NULL);
}
keyuse++;
found_ref_or_null|= found_part_ref_or_null;
} while (keyuse->table == table && keyuse->key == key &&
keyuse->keypart == keypart);
found_ref|= best_part_found_ref;
} while (keyuse->table == table && keyuse->key == key);
/*
@ -7203,9 +7216,12 @@ create_sort_index(THD *thd, JOIN *join, ORDER *order,
table->file->info(HA_STATUS_VARIABLE); // Get record count
table->sort.found_records=filesort(thd, table,sortorder, length,
select, filesort_limit, &examined_rows);
tab->records=table->sort.found_records; // For SQL_CALC_ROWS
delete select;
tab->select=0;
tab->records= table->sort.found_records; // For SQL_CALC_ROWS
if (select)
{
select->cleanup(); // filesort did select
tab->select= 0;
}
tab->select_cond=0;
tab->type=JT_ALL; // Read with normal read_record
tab->read_first_record= join_init_read_record;