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  1. MariaDB Server
  2. MDEV-8766

Wrong result for SELECT..WHERE LENGTH(time_column)=8 AND time_column=TIMESTAMP'2001-01-01 10:20:31'

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      SET timestamp=UNIX_TIMESTAMP('2001-01-01 01:02:03');
      		 
      DROP TABLE IF EXISTS t1;
      		 
      CREATE TABLE t1 (a TIME);
      		 
      INSERT INTO t1 VALUES ('10:20:31'),('-10:20:31');
      		 
      SELECT * FROM t1 WHERE a=TIMESTAMP'2001-01-01 10:20:31';
      		 
      SELECT * FROM t1 WHERE LENGTH(a)=8;
      		 
      SELECT * FROM t1 WHERE LENGTH(a)=8 AND a=TIMESTAMP'2001-01-01 10:20:31';

      In the above script the first and the second SELECT queries correctly return one row, the third SELECT query returns erroneously no rows.

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          Bug - A problem which impairs or prevents the functions of the product. MDEV-8728 Fix a number of problems in equal field and equal expression propagation

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              bar Alexander Barkov
              bar Alexander Barkov
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                Resolved:

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