How to disable index in innodb

mysql indexing innodb
fanchyna picture fanchyna · Mar 1, 2012 · Viewed 52.8k times · Source

I'm trying to speed up bulk insert in an InnoDB table by temporary disabling its indexes:

ALTER TABLE mytable DISABLE KEYS;

But it gives a warning:

+-------+------+-------------------------------------------------------------+
| Level | Code | Message                                                     |
+-------+------+-------------------------------------------------------------+
| Note  | 1031 | Table storage engine for 'mytable' doesn't have this option |
+-------+------+-------------------------------------------------------------+
1 row in set (0.00 sec)

How can we disable the indexes?

What alternatives are there to avoid using the index when doing bulk inserts?

How can we speed up the process?

Answer

lurkerbelow picture lurkerbelow · Mar 1, 2012

Have you tried the following?

    SET autocommit=0; 
    SET unique_checks=0; 
    SET foreign_key_checks=0;

From the MySQL References https://dev.mysql.com/doc/refman/5.5/en/optimizing-innodb-bulk-data-loading.html

See Section "Bulk Data Loading Tips"

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