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  1. MariaDB Server
  2. MDEV-23083

Replication filters provide information about schema through system variables

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    Description

      Long time ago MariaDB made replicate_do_db etc. system variables rather than just options as they were and still are in MySQL. And system variables are visible to unprivileged users.

      set global replicate_do_db='db';
      set global replicate_ignore_table='db.t';
      create user foo;
       
      --connect (con1,localhost,foo,,)
      show grants;
      select @@replicate_do_db, @@replicate_ignore_table;
      

      10.5 6cee9b1953

      MariaDB [test]> select @@replicate_do_db, @@replicate_ignore_table;
      +-------------------+--------------------------+
      | @@replicate_do_db | @@replicate_ignore_table |
      +-------------------+--------------------------+
      | db                | db.t                     |
      +-------------------+--------------------------+
      1 row in set (0.001 sec)
      

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            serg Sergei Golubchik
            elenst Elena Stepanova
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              Updated:

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