Spec-Zone .ru
спецификации, руководства, описания, API
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Spec-Zone .ru
спецификации, руководства, описания, API
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The INNODB_FT_DELETED table records rows that are deleted from the FULLTEXT index for an InnoDB table. To avoid expensive
index reorganization during DML operations for an InnoDB FULLTEXT
index, the information about newly deleted words is stored separately, filtered out of search results when you
do a text search, and removed from the main search index only when you issue the OPTIMIZE TABLE statement for the InnoDB table.
This table is only accessible to users with the SUPER privilege. Before you query
this table, set the configuration variable innodb_ft_aux_table to the name (including the database name) of the table
that contains the FULLTEXT index, for example test/articles.
Table 20.23. INNODB_FT_DELETED Columns
| Column name | Description |
|---|---|
DOC_ID |
The document ID of the newly deleted row. This value might reflect the value of an ID column
that you defined for the underlying table, or it can be a sequence value generated by InnoDB when the table does not contain a suitable column. This
value is used to skip rows in the innodb_ft_index_table table, when
you do text searches before data for deleted rows is physically removed from the FULLTEXT index by an OPTIMIZE TABLEstatement.
|
Notes:
This table initially appears empty, until you set the value of the configuration
variable innodb_ft_aux_table.
You must have the PROCESS privilege to query this
table.
For more information, see Section 12.9, "Full-Text Search Functions".