Details
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Bug
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    Status: Closed (View Workflow)
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Major
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    Resolution: Fixed
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    10.1.7
 
Description
					DROP TABLE IF EXISTS t1;
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					CREATE TABLE t1 (a DATE);
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					INSERT INTO t1 VALUES ('2001-01-01');
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					EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a BETWEEN '2001-01-01' AND '2001-01-02';
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					SHOW WARNINGS;
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					EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a IN ('2001-01-01','2001-01-02');
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					SHOW WARNINGS;
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used to return
					+-------+------+---------------------------------------------------------------------------------------+
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					| Level | Code | Message                                                                               |
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					+-------+------+---------------------------------------------------------------------------------------+
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					| Note  | 1003 | select `test`.`t1`.`a` AS `a` from `test`.`t1` where (`test`.`t1`.`a` = '2001-01-01') |
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					+-------+------+---------------------------------------------------------------------------------------+
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					+-------+------+---------------------------------------------------------------------------------------+
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					| Level | Code | Message                                                                               |
			 | 
		
					+-------+------+---------------------------------------------------------------------------------------+
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					| Note  | 1003 | select `test`.`t1`.`a` AS `a` from `test`.`t1` where (`test`.`t1`.`a` = '2001-01-01') |
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					+-------+------+---------------------------------------------------------------------------------------+
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After the patch for MDEV-8688 the same script returns:
					+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
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					| Level | Code | Message                                                                                                                                             |
			 | 
		
					+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
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					| Note  | 1003 | select `test`.`t1`.`a` AS `a` from `test`.`t1` where ((`test`.`t1`.`a` = '2001-01-01') and (`test`.`t1`.`a` between '2001-01-01' and '2001-01-02')) |
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					+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
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					+-------+------+----------------------------------------------------------------------------------------------------------------------------------------------+
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					| Level | Code | Message                                                                                                                                      |
			 | 
		
					+-------+------+----------------------------------------------------------------------------------------------------------------------------------------------+
			 | 
		
					| Note  | 1003 | select `test`.`t1`.`a` AS `a` from `test`.`t1` where ((`test`.`t1`.`a` = '2001-01-01') and (`test`.`t1`.`a` in ('2001-01-01','2001-01-02'))) |
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					+-------+------+----------------------------------------------------------------------------------------------------------------------------------------------+
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Attachments
Issue Links
- blocks
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MDEV-8728 Fix a number of problems in equal field and equal expression propagation
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 - Closed
 
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