The INNODB_FT_BEING_DELETED table was added in MariaDB 10.0.
The Information Schema INNODB_FT_BEING_DELETED table is only used while document ID's in the related INNODB_FT_DELETED are being removed from an InnoDB fulltext index while an OPTIMIZE TABLE is underway. At all other times the table will be empty.
The SUPER privilege is required to view the table, and it also requires the innodb_ft_aux_table system variable to be set.
It has the following column:
| Column | Description |
|---|---|
DOC_ID |
Document ID of the row being deleted. Either an underlying ID value, or a sequence value generated by InnoDB if no usable option exists. |
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Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/information-schema-innodb_ft_being_deleted-table/