"Variable_name" "Value"
"character_set_client" "utf8"
"character_set_connection" "utf8"
"character_set_database" "utf8mb4"
"character_set_filesystem" "binary"
"character_set_results" "utf8"
"character_set_server" "utf8mb4"
"character_set_system" "utf8"
"character_sets_dir" "/usr/share/percona-server/charsets/"
"Variable_name" "Value"
"collation_connection" "utf8_general_ci"
"collation_database" "utf8mb4_unicode_ci"
"collation_server" "utf8mb4_0900_ai_ci"