DBI, BLOBS, MySQL
Richard Huxton
dev at archonet.com
Fri Jan 9 09:00:52 GMT 2009
Paul Makepeace wrote:
> What does 'show table files;' give you? You might have the wrong type
> of blob/text.
>
> http://dev.mysql.com/doc/refman/5.0/en/blob.html
"If a TEXT column is indexed, index entry comparisons are space-padded
at the end. This means that, if the index requires unique values,
duplicate-key errors will occur for values that differ only in the
number of trailing spaces. For example, if a table contains 'a', an
attempt to store 'a ' causes a duplicate-key error"
Genius. True genius.
--
Richard Huxton
Archonet Ltd
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