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after merge fixes

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serg@serg.mylan
2004-08-19 03:02:09 +02:00
parent e1237cbc53
commit 3f2210c064
19 changed files with 98 additions and 88 deletions
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9
mysql-test/r/myisam.result
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@@ -529,3 +529,12 @@ show keys from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a NULL NULL NULL NULL YES HASH
drop table t1,t2;
create table t1 ( a tinytext, b char(1), index idx (a(1),b) );
insert into t1 values (null,''), (null,'');
explain select count(*) from t1 where a is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref idx idx 4 const 1 Using where
select count(*) from t1 where a is null;
count(*)
2
drop table t1;