# myisam_ftdump

## NAME



           myisam_ftdump - display full-text index information
    


## SYNOPSIS



    
           **myisam_ftdump [**_options_**]**_tbl_name index_num_
    


## DESCRIPTION



           **myisam_ftdump** displays information about FULLTEXT indexes in
           MyISAM tables. It reads the MyISAM index file directly, so it must
           be run on the server host where the table is located. Before using
           **myisam_ftdump** , be sure to issue a FLUSH TABLES statement first if
           the server is running.
    
           **myisam_ftdump** scans and dumps the entire index, which is not
           particularly fast. On the other hand, the distribution of words
           changes infrequently, so it need not be run often.
    
           Invoke **myisam_ftdump** like this:
    
               shell> **myisam_ftdump [**_options_**]**_tbl_name index_num_
    
           The _tbl_name_ argument should be the name of a MyISAM table. You
           can also specify a table by naming its index file (the file with
           the .MYI suffix). If you do not invoke **myisam_ftdump** in the
           directory where the table files are located, the table or index
           file name must be preceded by the path name to the table's
           database directory. Index numbers begin with 0.
    
           Example: Suppose that the test database contains a table named
           mytexttablel that has the following definition:
    
               CREATE TABLE mytexttable
               (
                 id   INT NOT NULL,
                 txt  TEXT NOT NULL,
                 PRIMARY KEY (id),
                 FULLTEXT (txt)
               );
    
           The index on id is index 0 and the FULLTEXT index on txt is index
           1. If your working directory is the test database directory,
           invoke **myisam_ftdump** as follows:
    
               shell> **myisam_ftdump mytexttable 1**
    
           If the path name to the test database directory is
           /usr/local/mysql/data/test, you can also specify the table name
           argument using that path name. This is useful if you do not invoke
           **myisam_ftdump** in the database directory:
    
               shell> **myisam_ftdump /usr/local/mysql/data/test/mytexttable 1**
    
           You can use **myisam_ftdump** to generate a list of index entries in
           order of frequency of occurrence like this:
    
               shell> **myisam_ftdump -c mytexttable 1 | sort -r**
    
           **myisam_ftdump** supports the following options:
    
           •   **--help** , **-h -?**
    
               Display a help message and exit.
    
           •   **--count** , **-c**
    
               Calculate per-word statistics (counts and global weights).
    
           •   **--dump** , **-d**
    
               Dump the index, including data offsets and word weights.
    
           •   **--length** , **-l**
    
               Report the length distribution.
    
           •   **--stats** , **-s**
    
               Report global index statistics. This is the default operation
               if no other operation is specified.
    
           •   **--verbose** , **-v**
    
               Verbose mode. Print more output about what the program does.
    


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