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  1. MariaDB Server
  2. MDEV-29562

Spider table with charset utf32/utf16/ucs2 tries to set client charset to unsupported value

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      --source plugin/spider/spider/include/init_spider.inc
      		 
       
      		 
      SET spider_same_server_link= on;
      		 
      eval create server s foreign data wrapper mysql options (host "127.0.0.1", database "test", user "root", port $MASTER_MYPORT);
      		 
       
      		 
      CREATE TABLE t (a INT);
      		 
      CREATE TABLE t_spider (a INT) ENGINE=SPIDER COMMENT = "wrapper 'mysql', srv 's', table 't'" CHARSET utf32;
      		 
      SELECT * FROM t_spider;
      		 
       
      		 
      # Cleanup
      		 
       
      		 
      DROP TABLE t_spider, t;
      		 
      DROP SERVER s;
      		 
       
      		 
      --source plugin/spider/spider/include/deinit_spider.inc

      10.4 3e3cfa89

      		 
      mysqltest: At line 8: query 'SELECT * FROM t_spider' failed: 1231: Variable 'character_set_client' can't be set to the value of 'utf32'

      At this point Spider tries to run SET NAMES utf32 (hopelessly of course).

      Note that the test case sets an explicit character set for the Spider table for simplicity; in reality, it would rather be either a database charset, or a system-wide character-set-server. The result is the same anyway.

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            ycp Yuchen Pei
            elenst Elena Stepanova
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