Commit 92bf3cc1 authored by unknown's avatar unknown
Browse files

Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-5.0 

into mysql.com:/home/psergey/mysql-5.0-merge-sept24
parents 76aac14e 5f01a330

myisam/mi_check.c

+1 −1
Original line number Diff line number Diff line
@@ -3994,7 +3994,7 @@ void update_auto_increment_key(MI_CHECK *param, MI_INFO *info, 
    ...

    The 'unique' array is collected in one sequential scan through the entire

    index. This is done in two places: in chk_index() and in sort_key_write().

    Statistics collection may consider NULLs as either equal or inequal (see

    Statistics collection may consider NULLs as either equal or unequal (see

    SEARCH_NULL_ARE_NOT_EQUAL, MI_STATS_METHOD_*).



    Output is an array:

myisam/myisamchk.c

+3 −3
Original line number Diff line number Diff line
@@ -67,7 +67,7 @@ static const char *field_pack[]= 
 "no zeros", "blob", "constant", "table-lockup",

 "always zero","varchar","unique-hash","?","?"};



static const char *myisam_stats_method_str="nulls_inequal";

static const char *myisam_stats_method_str="nulls_unequal";



static void get_options(int *argc,char * * *argv);

static void print_version(void);
@@ -339,7 +339,7 @@ static struct my_option my_long_options[] = 
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},

  {"stats_method", OPT_STATS_METHOD,

   "Specifies how index statistics collection code should threat NULLs. "

   "Possible values of name are \"nulls_inequal\" (default behavior for 4.1/5.0), and \"nulls_equal\" (emulate 4.0 behavior).",

   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), and \"nulls_equal\" (emulate 4.0 behavior).",

   (gptr*) &myisam_stats_method_str, (gptr*) &myisam_stats_method_str, 0,

    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},

  { 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
@@ -471,7 +471,7 @@ static void usage(void) 


#include <help_end.h>



const char *myisam_stats_method_names[] = {"nulls_inequal", "nulls_equal",

const char *myisam_stats_method_names[] = {"nulls_unequal", "nulls_equal",

                                           NullS};

TYPELIB myisam_stats_method_typelib= {

  array_elements(myisam_stats_method_names) - 1, "",

mysql-test/r/func_in.result

+9 −0
Original line number Diff line number Diff line
@@ -193,6 +193,15 @@ select * from t1 where a in (NULL, 'aa'); 
a

aa

drop table t1;

create table t1 (id int, key(id));

insert into t1 values (1),(2),(3);

select count(*) from t1 where id not in (1);

count(*)

2

select count(*) from t1 where id not in (1,2);

count(*)

1

drop table t1;

CREATE TABLE t1 (a int PRIMARY KEY);

INSERT INTO t1 VALUES (44), (45), (46);

SELECT * FROM t1 WHERE a IN (45);

mysql-test/r/myisam.result

+2 −2
Original line number Diff line number Diff line
@@ -610,7 +610,7 @@ test.t2 984116287 
drop table t1, t2;

show variables like 'myisam_stats_method';

Variable_name	Value

myisam_stats_method	nulls_inequal

myisam_stats_method	nulls_unequal

create table t1 (a int, key(a));

insert into t1 values (0),(1),(2),(3),(4);

insert into t1 select NULL from t1;
@@ -651,7 +651,7 @@ t1 1 a 1 a A 5 NULL NULL YES BTREE 
set myisam_stats_method=DEFAULT;

show variables like 'myisam_stats_method';

Variable_name	Value

myisam_stats_method	nulls_inequal

myisam_stats_method	nulls_unequal

insert into t1 values (11);

delete from t1 where a=11;

analyze table t1;

mysql-test/t/func_in.test

+7 −0
Original line number Diff line number Diff line
@@ -102,6 +102,13 @@ insert into t1 values ('aa'), ('bb'); 
select * from t1 where a in (NULL, 'aa');

drop table t1;



# BUG#13419

create table t1 (id int, key(id));

insert into t1 values (1),(2),(3);

select count(*) from t1 where id not in (1);

select count(*) from t1 where id not in (1,2);

drop table t1;



# End of 4.1 tests



#