In this chapter, we'll look at the SDI and discuss its advantages and changes.
Many DBAs and developers prefer to copy table data and .frm files from the data dictionary and schedule some batch jobs that automatically recover these tables. This ability has also been used for disaster recovery, where people who are really familiar with .frm are able to rebuild the metadata in the .frm file when they want to.
In MySQL 8.0, the information is provided in the dictionary serialized objects for the dictionary. For InnoDB tablespaces, this information is added to the tablespace, so that the metadata and data are combined, again with performance in mind. For storage engines that do not support this feature, a .sdi file is written.
This is illustrated in the following diagram:
For MySQL tablespaces, InnoDB has an API type of tool to read the...