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ndb_drop_index

NAME

ndb_drop_index - drop index from NDB table

SYNOPSIS

ndb_drop_index options

DESCRIPTION

ndb_drop_index

drops the specified index from an NDB table. It is recommended that you use this utility only as an example for writing NDB API applications --- see the Warning later in this section for details.

Usage:

 ndb_drop_index -c connect_string table_name index -d db_name
 

The statement shown above drops the index named index from the table in the database.

Additional Options: None that are specific to this application.

Warning: Operations performed on Cluster table indexes using the NDB API are not visible to MySQL and make the table unusable by a MySQL server. If you use this program to drop an index, then try to access the table from an SQL node, an error results, as shown here:

 shell> ./ndb_drop_index -c localhost dogs ix -d ctest1
 Dropping index dogs/idx...OK
 NDBT_ProgramExit: 0 - OK
 shell> ./mysql -u jon -p ctest1
 Enter password: *******
 Reading table information for completion of table and column names
 You can turn off this feature to get a quicker startup with -A
 Welcome to the MySQL monitor.  Commands end with ; or \g.
 Your MySQL connection id is 7 to server version: 5.1.12-beta-20060817
 Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
 mysql> SHOW TABLES;
 +------------------+
 | Tables_in_ctest1 |
 +------------------+
 | a                |
 | bt1              |
 | bt2              |
 | dogs             |
 | employees        |
 | fish             |
 +------------------+
 6 rows in set (0.00 sec)
 mysql> SELECT * FROM dogs;
 ERROR 1296 (HY000): Got error 4243 'Index not found' from NDBCLUSTER
 

In such a case, your only option for making the table available to MySQL again is to drop the table and re-create it. You can use either the SQL statementDROP TABLE or the ndb_drop_table utility (see ndb_drop_table(1)) to drop the table.

COPYRIGHT

Copyright 1997-2007 MySQL AB

This documentation is NOT distributed under a GPL license. Use of this documentation is subject to the following terms: You may create a printed copy of this documentation solely for your own personal use. Conversion to other formats is allowed as long as the actual content is not altered or edited in any way. You shall not publish or distribute this documentation in any form or on any media, except if you distribute the documentation in a manner similar to how MySQL disseminates it (that is, electronically for download on a Web site with the software) or on a CD-ROM or similar medium, provided however that the documentation is disseminated together with the software on the same medium. Any other use, such as any dissemination of printed copies or use of this documentation, in whole or in part, in another publication, requires the prior written consent from an authorized representative of MySQL AB. MySQL AB reserves any and all rights to this documentation not expressly granted above.

Please email <docs@mysql.com> for more information.

SEE ALSO

For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/.

AUTHOR

MySQL AB (http://www.mysql.com/). This software comes with no warranty.