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after review patch

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This commit is contained in:
bell@sanja.is.com.ua
2004-08-31 21:10:57 +03:00
parent 18366c930c
commit 2cf1234ba2
10 changed files with 74 additions and 70 deletions
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13
mysql-test/r/negation_elimination.result
View File

@@ -375,4 +375,17 @@ a
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delete from t1 where a > 3;
select a, not(not(a)) from t1;
a not(not(a))
NULL NULL
0 0
1 1
2 1
3 1
explain extended select a, not(not(a)), not(a <= 2 and not(a)), not(a not like "1"), not (a not in (1,2)), not(a != 2) from t1 where not(not(a)) having not(not(a));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL a 5 NULL 5 Using where; Using index
Warnings:
Note 1003 select test.t1.a AS `a`,(test.t1.a <> 0) AS `not(not(a))`,((test.t1.a > 2) or test.t1.a) AS `not(a <= 2 and not(a))`,(test.t1.a like _latin1'1') AS `not(a not like "1")`,(test.t1.a in (1,2)) AS `not (a not in (1,2))`,(test.t1.a = 2) AS `not(a != 2)` from test.t1 where test.t1.a having test.t1.a
drop table t1;

4
mysql-test/t/negation_elimination.test
View File

@@ -65,4 +65,8 @@ select * from t1 where not((a < 5 and a < 10) and (not(a > 16) or a > 17));
explain select * from t1 where ((a between 5 and 15) and (not(a like 10)));
select * from t1 where ((a between 5 and 15) and (not(a like 10)));
delete from t1 where a > 3;
select a, not(not(a)) from t1;
explain extended select a, not(not(a)), not(a <= 2 and not(a)), not(a not like "1"), not (a not in (1,2)), not(a != 2) from t1 where not(not(a)) having not(not(a));
drop table t1;