Re: indexing error - key length not specified

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



You can't use that column type as an index because it's variable length.

Make it a varchar or something that's definite to index it.

-Micah

On 02/09/2007 03:56 PM, John Pillion wrote:
I am trying to set an index on a field in my table, but am getting the
following error:

    BLOB column 'ReadBy' used in key specification without a key length

The fieldtype is blob, though I get the same error whether blob or text, or
the medium and long versions of each.  My first though, based on the error,
was I needed to set a length to the field - but it won't accept/store any
length I give it (because it's a variable length?)

I'm using mysql on from 1and1 (hosting provider), though I don't know what
version they're running

.. any thoughts?

As an alternative, how much less efficient would it be to do a ".LIKE
'%mystring%'" versus a MATCH..?



--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php


[Index of Archives]     [PHP Home]     [PHP Users]     [Postgresql Discussion]     [Kernel Newbies]     [Postgresql]     [Yosemite News]

  Powered by Linux