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  1. MariaDB Server
  2. MDEV-8742

Wrong result for SELECT..WHERE view_latin1_swedish_ci_field='a' COLLATE latin1_bin

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    Description

      DROP TABLE IF EXISTS t1;
      		 
      CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1);
      		 
      INSERT INTO t1 VALUES ('a'),('A');
      		 
      DROP VIEW IF EXISTS v1;
      		 
      CREATE VIEW v1 AS SELECT * FROM t1 WHERE a='a';
      		 
      SELECT * FROM v1 WHERE a=_latin1'a' COLLATE latin1_bin;

      erroneously returns two rows:

      +------+
      		 
      | a    |
      		 
      +------+
      		 
      | a    |
      		 
      | A    |
      		 
      +------+

      The expected result is to return on row only, with 'a' in lower case.

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        Issue Links

          blocks

          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

          Activity

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            bar Alexander Barkov created issue -
            bar Alexander Barkov made changes -
            Field Original Value New Value
            bar Alexander Barkov made changes -
            Fix Version/s 10.1.7 [ 19604 ]
            Fix Version/s 10.1 [ 16100 ]
            Resolution Fixed [ 1 ]
            Status Open [ 1 ] Closed [ 6 ]
            bar Alexander Barkov made changes -
            Labels propagation
            bar Alexander Barkov made changes -
            Labels propagation propagation upstream-not-affected
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 71347 ] MariaDB v4 [ 149565 ]

            People

              bar Alexander Barkov
              bar Alexander Barkov
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              Dates

                Created:
                Updated:
                Resolved:

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