The Information Schema
INNODB_FT_DELETED table contains rows that have been deleted from an InnoDB fulltext index. This information is then used to filter results on subsequent searches, removing the need to expensively reorganise the index each time a row is deleted.
The fulltext index is then only reorganized when an OPTIMIZE TABLE statement is underway. The related INNODB_FT_BEING_DELETED table contains rows being deleted while an
OPTIMIZE TABLE is in the process of running.
It has the following column:
||Document ID of the deleted row deleted. Either an underlying ID value, or a sequence value generated by InnoDB if no usable option exists.|
SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_DELETED; +--------+ | DOC_ID | +--------+ | 2 | +--------+ DELETE FROM test.ft_innodb LIMIT 1; SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_DELETED; +--------+ | DOC_ID | +--------+ | 2 | | 3 | +--------+
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