NDB_DROP_INDEX(1)

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 2007-2008 MySQL AB

This documentation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.

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You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.