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mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00

Optimized code for setting user variables with := and fixed some bugs in old code (Bug #1194)

Use forced close of socket to make mysqld shutdown faster when used under valgrind
This commit is contained in:
monty@mishka.mysql.fi
2003-10-03 00:40:27 +03:00
parent 8c13c30142
commit 989ca397b2
8 changed files with 207 additions and 156 deletions

View File

@ -30,6 +30,7 @@ explain select * from t1 where i=@vv1;
table type possible_keys key key_len ref rows Extra
t1 ref i i 4 const 1 Using where
drop table t1,t2;
set @a=0,@b=0;
select @a:=10, @b:=1, @a > @b, @a < @b;
@a:=10 @b:=1 @a > @b @a < @b
10 1 1 0
@ -38,18 +39,18 @@ select @a:="10", @b:="1", @a > @b, @a < @b;
10 1 1 0
select @a:=10, @b:=2, @a > @b, @a < @b;
@a:=10 @b:=2 @a > @b @a < @b
10 2 1 0
10 2 0 1
select @a:="10", @b:="2", @a > @b, @a < @b;
@a:="10" @b:="2" @a > @b @a < @b
10 2 0 1
10 2 1 0
select @a:=1;
@a:=1
1
select @a, @a:=1;
@a @a:=1
1 1
create table t1 (id int);
insert into t1 values (1);
create table t1 (id int, d double, c char(10));
insert into t1 values (1,2.0, "test");
select @c:=0;
@c:=0
0
@ -70,7 +71,29 @@ select @c:=0;
select @c:=@c+1;
@c:=@c+1
1
select @d,(@d:=id),@d from t1;
@d (@d:=id) @d
NULL 1 1
select @e,(@e:=d),@e from t1;
@e (@e:=d) @e
NULL 2 2
select @f,(@f:=c),@f from t1;
@f (@f:=c) @f
NULL test test
set @g=1;
select @g,(@g:=c),@g from t1;
@g (@g:=c) @g
1 test test
select @c, @d, @e, @f;
@c @d @e @f
1 1 2 test
select @d:=id, @e:=id, @f:=id, @g:=@id from t1;
@d:=id @e:=id @f:=id @g:=@id
1 1 1 NULL
select @c, @d, @e, @f, @g;
@c @d @e @f @g
1 1 1 1 NULL
drop table t1;
select @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b, @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b;
@a:=10 @b:=2 @a>@b @a:="10" @b:="2" @a>@b @a:=10 @b:=2 @a>@b @a:="10" @b:="2" @a>@b
10 2 1 10 2 0 10 2 1 10 2 0
10 2 1 10 2 1 10 2 1 10 2 1