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1
by brian
clean slate |
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#
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# Test negation elimination |
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#
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--disable_warnings
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drop table if exists t1; |
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--enable_warnings
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create table t1 (a int, key (a)); |
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insert into t1 values (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9), |
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(10), (11), (12), (13), (14), (15), (16), (17), (18), (19); |
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explain select * from t1 where not(not(a)); |
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select * from t1 where not(not(a)); |
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explain select * from t1 where not(not(not(a > 10))); |
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select * from t1 where not(not(not(a > 10))); |
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explain select * from t1 where not(not(not(a < 5) and not(a > 10))); |
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select * from t1 where not(not(not(a < 5) and not(a > 10))); |
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explain select * from t1 where not(a = 10); |
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select * from t1 where not(a = 10); |
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explain select * from t1 where not(a != 10); |
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select * from t1 where not(a != 1); |
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explain select * from t1 where not(a < 10); |
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select * from t1 where not(a < 10); |
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explain select * from t1 where not(a >= 10); |
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select * from t1 where not(a >= 10); |
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explain select * from t1 where not(a > 10); |
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select * from t1 where not(a > 10); |
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explain select * from t1 where not(a <= 10); |
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select * from t1 where not(a <= 10); |
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explain select * from t1 where not(a is null); |
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select * from t1 where not(a is null); |
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explain select * from t1 where not(a is not null); |
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select * from t1 where not(a is not null); |
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explain select * from t1 where not(a < 5 or a > 15); |
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select * from t1 where not(a < 5 or a > 15); |
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explain select * from t1 where not(a < 15 and a > 5); |
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select * from t1 where not(a < 15 and a > 5); |
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explain select * from t1 where a = 2 or not(a < 10); |
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select * from t1 where a = 2 or not(a < 10); |
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explain select * from t1 where a > 5 and not(a > 10); |
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select * from t1 where a > 5 and not(a > 10); |
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explain select * from t1 where a > 5 xor a < 10; |
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select * from t1 where a > 5 xor a < 10; |
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explain select * from t1 where a = 2 or not(a < 5 or a > 15); |
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select * from t1 where a = 2 or not(a < 5 or a > 15); |
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explain select * from t1 where a = 7 or not(a < 15 and a > 5); |
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select * from t1 where a = 7 or not(a < 15 and a > 5); |
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explain select * from t1 where NULL or not(a < 15 and a > 5); |
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select * from t1 where NULL or not(a < 15 and a > 5); |
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explain select * from t1 where not(NULL and a > 5); |
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select * from t1 where not(NULL and a > 5); |
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explain select * from t1 where not(NULL or a); |
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select * from t1 where not(NULL or a); |
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explain select * from t1 where not(NULL and a); |
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select * from t1 where not(NULL and a); |
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explain select * from t1 where not((a < 5 or a < 10) and (not(a > 16) or a > 17)); |
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select * from t1 where not((a < 5 or a < 10) and (not(a > 16) or a > 17)); |
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explain select * from t1 where not((a < 5 and a < 10) and (not(a > 16) or a > 17)); |
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select * from t1 where not((a < 5 and a < 10) and (not(a > 16) or a > 17)); |
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explain select * from t1 where ((a between 5 and 15) and (not(a like 10))); |
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select * from t1 where ((a between 5 and 15) and (not(a like 10))); |
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delete from t1 where a > 3; |
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select a, not(not(a)) from t1; |
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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)); |
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drop table t1; |
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# End of 4.1 tests |