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_INDEX_TABLE table displays information about the inverted index used
to process text searches against the FULLTEXT index of an 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 20.21. INNODB_FT_INDEX_TABLE Columns
| Column name | Description |
|---|---|
WORD |
A word extracted from the text of the columns that are part of a FULLTEXT.
|
FIRST_DOC_ID |
The first document ID that this word appears in in the FULLTEXT
index.
|
LAST_DOC_ID |
The last document ID that this word appears in in the FULLTEXT
index.
|
DOC_COUNT |
The number of rows this word appears in in the FULLTEXT index. The
same word can occur several times within the cache table, once for each combination of DOC_ID and POSITION values.
|
DOC_ID |
The document ID of the row containing the word. 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.
|
POSITION |
The position of this particular instance of the word within the relevant document identified by
the DOC_IDvalue.
|
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".