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subselect with union

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new error handling
Item_ref bug fixed
This commit is contained in:
bell@sanja.is.com.ua
2002-09-03 09:50:36 +03:00
parent 189d1dd630
commit b07aaeb295
25 changed files with 686 additions and 382 deletions
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3
mysql-test/r/distinct.result
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@ -92,7 +92,8 @@ NULL NULL NULL
0 0
select id >= 0 and id <= 5 as grp,count(*) from t1 group by grp;
grp count(*)
0 7
NULL 1
0 6
1 6
SELECT DISTINCT FACILITY FROM t1;
FACILITY

21
mysql-test/r/subselect.result
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@ -1,7 +1,7 @@
select (select 2);
(select 2)
2
drop table if exists t1,t2,t3,t4;
drop table if exists t1,t2,t3,t4,t5;
create table t1 (a int);
create table t2 (a int, b int);
create table t3 (a int);
@ -82,4 +82,21 @@ select b,max(a) as ma from t4 group by b having b >= (select max(t2.a)
from t2 where t2.b=t4.b);
b ma
7 12
drop table t1,t2,t3,t4;
create table t5 (a int);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
NULL 1
2 2
insert into t5 values (5);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
NULL 1
2 2
insert into t5 values (2);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
NULL 1
2 2
select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
Subselect return more than 1 record
drop table t1,t2,t3,t4,t5;

12
mysql-test/t/subselect.test
View File

@ -1,6 +1,6 @@
select (select 2);
drop table if exists t1,t2,t3,t4;
drop table if exists t1,t2,t3,t4,t5;
create table t1 (a int);
create table t2 (a int, b int);
create table t3 (a int);
@ -33,4 +33,12 @@ select b,max(a) as ma from t4 group by b having b < (select max(t2.a)
from t2 where t2.b=t4.b);
select b,max(a) as ma from t4 group by b having b >= (select max(t2.a)
from t2 where t2.b=t4.b);
drop table t1,t2,t3,t4;
create table t5 (a int);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
insert into t5 values (5);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
insert into t5 values (2);
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
-- error 1230
select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
drop table t1,t2,t3,t4,t5;