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Fixed bug #18165.

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Made [NOT]BETWEEN predicates SARGable in respect to the second and 
the third arguments.


mysql-test/r/range.result:
  Added a test case to bug #18165.
mysql-test/t/range.test:
  Added a test case to bug #18165.
sql/opt_range.cc:
  Fixed bug #18165.
  Made [NOT]BETWEEN predicates SARGable in respect to the second and 
  the third arguments.
  Put in a separate function called get_full_func_mm_tree the functionality
  that builds a conjunction of all SEL_TREEs for a simple predicate of the
  form (f op c), where f was a field and c was a constant, applying different
  equalities f=f' with f' being another field.
This commit is contained in:
unknown
2006-08-16 09:37:19 -07:00
parent 85ac350cf4
commit c8cafde703
4 changed files with 255 additions and 60 deletions
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30
mysql-test/t/range.test
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@@ -680,4 +680,34 @@ prepare stmt1 from @a;
execute stmt1;
drop table t1, t2;
#
# Bug #18165: range access for BETWEEN with a constant for the first argument
#
CREATE TABLE t1 (
id int NOT NULL DEFAULT '0',
b int NOT NULL DEFAULT '0',
c int NOT NULL DEFAULT '0',
INDEX idx1(b,c), INDEX idx2(c));
INSERT INTO t1(id) VALUES (1), (2), (3), (4), (5), (6), (7), (8);
INSERT INTO t1(b,c) VALUES (3,4), (3,4);
SELECT * FROM t1 WHERE b<=3 AND 3<=c;
SELECT * FROM t1 WHERE 3 BETWEEN b AND c;
EXPLAIN SELECT * FROM t1 WHERE b<=3 AND 3<=c;
EXPLAIN SELECT * FROM t1 WHERE 3 BETWEEN b AND c;
SELECT * FROM t1 WHERE 0 < b OR 0 > c;
SELECT * FROM t1 WHERE 0 NOT BETWEEN b AND c;
EXPLAIN SELECT * FROM t1 WHERE 0 < b OR 0 > c;
EXPLAIN SELECT * FROM t1 WHERE 0 NOT BETWEEN b AND c;
DROP TABLE t1;
# End of 5.0 tests