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  1. MariaDB Server
  2. MDEV-16922

Problems with Mroonga storage engine

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      Description

      I have detected an issue when execute a select count of another query that internaly uses myisam with mroonga with an index.

      I have attached a file that demostrates the problem.

      The result of the sql script is:

      SELECT COUNT(*) FROM tbl_aaa;
       
      COUNT(*)
      10
       
      SELECT COUNT(*) FROM tbl_bbb;
       
      COUNT(*)
      20
       
      SELECT COUNT(*)
      FROM (
      	SELECT a.id
      	FROM tbl_aaa a
      	LEFT JOIN tbl_bbb b ON b.id_aplicacion=21 AND b.id_registro=a.id
      ) c;
       
      COUNT(*)
      10
       
      CREATE INDEX ccc ON tbl_bbb (id_registro);
       
      SELECT COUNT(*)
      FROM (
      	SELECT a.id
      	FROM tbl_aaa a
      	LEFT JOIN tbl_bbb b ON b.id_aplicacion=21 AND b.id_registro=a.id
      ) c;
       
      COUNT(*)
      15
      

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            Assignee:
            kou Kouhei Sutou
            Reporter:
            sanz Josep Sanz
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              Updated:

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