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  1. MariaDB Server
  2. MDEV-37317

Mroonga returns ER_ERROR_ON_WRITE (1026): primary key is empty upon inserting empty string into PK

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      I'm not sure whether it's expected behavior or not, at least Mroonga limitations don't mention it. In any case, it's very unlikely that it would be fixed, but such a strange error confuses tests, so I want to have it filed so that the tests could start ignoring it.

      INSTALL SONAME 'ha_mroonga';
      		 
       
      		 
      CREATE TABLE t (f VARCHAR(8) PRIMARY KEY) ENGINE=Mroonga;
      		 
      INSERT INTO t VALUES ('x'),('');
      		 
       
      		 
      DROP TABLE t;
      		 
      UNINSTALL SONAME 'ha_mroonga';

      main b57bf6f7b149c7dc08fc77bd5fa8b92f5c46e147

      		 
      mysqltest: At line 4: query 'INSERT INTO t VALUES ('x'),('')' failed: ER_ERROR_ON_WRITE (1026): primary key is empty

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            kou Kouhei Sutou
            elenst Elena Stepanova
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