忽视复制mysql> SHOW VARIABLES  WHERE variable_name LIKE%character%OR  variable_name  LIKE%collation%  ;  +-------------------------------+--------------------------------------+ | Variable_name                 | Value                                |  +-------------------------------+--------------------------------------+ | character_set_client          | utf8mb4                              |  | character_set_connection      | utf8mb4                              |  | character_set_database        | utf8mb4                              |  | character_set_filesystem      | binary                               |  | character_set_results         | utf8mb4                              |  | character_set_server          | utf8mb4                              |  | character_set_system          | utf8                                 |  | character_sets_dir            | /opt/idc/mysql8.0.23/share/charsets/ |  | collation_connection          | utf8mb4_bin                          |  | collation_database            | utf8mb4_bin                          |  | collation_server              | utf8mb4_bin                          |  | default_collation_for_utf8mb4 | utf8mb4_0900_ai_ci                   |  +-------------------------------+--------------------------------------+ 1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.

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