ibd2sdi — InnoDB Tablespace SDI Extraction Utility of the  mysql.tables  and  mysql.tablespace  data dictionary tables. For information about data dictionary tables, see Section 14.1, “Data Dictionary Schema” . Retrieves serialized dictionary information (SDI) matching the specified object type. SDI is provided for table (type=1) and tablespace (type=2) objects. 554 shell>  ibd2sdi --type=2 ../data/test/t1.ibd ["ibd2sdi" , {  "type": 2,  "id": 7,  "object": { "mysqld_version_id": 80003, "dd_version": 80003, "sdi_version": 1, "dd_object_type": "Tablespace", "dd_object": { "name": "test/t1", "comment": "", "options": "", "se_private_data": "flags=16417;id=2;server_version=80003;space_version=1;", "engine": "InnoDB", "files": [ { "ordinal_position": 1, "filename": "./test/t1.ibd", "se_private_data": "id=2;" } ] } } } shell>  ibd2sdi --id=7 ../data/test/t1.ibd ["ibd2sdi" , {  "type": 2,  "id": 7,  "object": { "mysqld_version_id": 80003, "dd_version": 80003, "sdi_version": 1, "dd_object_type": "Tablespace", "dd_object": { "name": "test/t1", "comment": "", "options": "", "se_private_data": "flags=16417;id=2;server_version=80003;space_version=1;", "engine": "InnoDB", "files": [ { "ordinal_position": 1, "filename": "./test/t1.ibd", "se_private_data": "id=2;" } ] } } } ] • --type= # ,  -t  #