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  1. MariaDB Server
  2. MDEV-27398

DESC index causes wrong (empty) result on Federated tables

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      Description

      --source suite/federated/have_federatedx.inc
       
      create table t (a int) engine=MyISAM;
      insert into t values (1),(5),(2),(3),(4);
       
      --eval create table tf (a int, key(a desc)) connection 'mysql://root@127.0.0.1:$MASTER_MYPORT/test/t' engine=Federated
      select * from tf;
      select * from tf where a > 2;
      select * from tf where a < 3;
       
      # Cleanup
      drop table tf, t;
      

      preview-10.8-MDEV-13756-desc-indexes 383b51d689

      select * from tf where a > 2;
      a
      select * from tf where a < 3;
      a
      drop table tf, t;
      

      Same for Federated and FederatedX.
      With an ascending index the results are correct.

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              elenst Elena Stepanova
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                Resolved:

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