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Fixed bug in GROUP BY ... DESC

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Docs/manual.texi:
  Changelog
libmysql/libmysql.c:
  Fixed bug with mysql_use_result() when mysql_query() is called before mysql_free_result().
mysql-test/r/group_by.result:
  New tests
mysql-test/t/group_by.test:
  New tests
sql/stacktrace.c:
  Fix for SCO
This commit is contained in:
unknown
2001-12-10 17:51:07 +02:00
parent 6f8f45e959
commit 2d1e16eb04
7 changed files with 68 additions and 14 deletions
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30
mysql-test/r/group_by.result
View File

@ -34,3 +34,33 @@ Test Procedures 0
2 a 0
1+1 a count(*)
2 a 0
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 6 Using temporary
userid count(*)
3 3
2 1
1 2
table type possible_keys key key_len ref rows Extra
t1 range spID spID 5 NULL 2 where used; Using index; Using temporary
table type possible_keys key key_len ref rows Extra
t1 range spID spID 5 NULL 2 where used; Using index
spid count(*)
1 1
2 2
spid count(*)
2 2
1 1
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 6 Using filesort
spid sum(userid)
5 3
4 3
3 3
2 3
1 1
table type possible_keys key key_len ref rows Extra
t1 index NULL score 3 NULL 6 Using index
score count(*)
3 3
2 1
1 2

25
mysql-test/t/group_by.test
View File

@ -38,7 +38,6 @@ INSERT INTO t2 VALUES (3,'name','pass','mail','Y','v','n','adr','1','1','1');
SELECT t2.userid, MIN(t1.score) FROM t1, t2 WHERE t1.userID=t2.userID GROUP BY t2.userid;
SELECT t2.userid, MIN(t1.score) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid;
SELECT t2.userid, MIN(t1.score+0.0) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid;
drop table test.t1,test.t2;
#
@ -220,3 +219,27 @@ select 1+1, "a",count(*) from t1 where foo in (2);
insert into t1 values (1);
select 1+1,"a",count(*) from t1 where foo in (2);
drop table t1;
#
# Test GROUP BY DESC
CREATE TABLE t1 (
spID int(10) unsigned,
userID int(10) unsigned,
score smallint(5) unsigned,
key (spid),
key (score)
);
INSERT INTO t1 VALUES (1,1,1),(2,2,2),(2,1,1),(3,3,3),(4,3,3),(5,3,3);
explain select userid,count(*) from t1 group by userid desc;
select userid,count(*) from t1 group by userid desc;
explain select spid,count(*) from t1 where spid between 1 and 2 group by spid desc;
explain select spid,count(*) from t1 where spid between 1 and 2 group by spid;
select spid,count(*) from t1 where spid between 1 and 2 group by spid;
select spid,count(*) from t1 where spid between 1 and 2 group by spid desc;
explain select sql_big_result spid,sum(userid) from t1 group by spid desc;
select sql_big_result spid,sum(userid) from t1 group by spid desc;
explain select sql_big_result score,count(*) from t1 group by score desc;
select sql_big_result score,count(*) from t1 group by score desc;
drop table t1;