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Ryan Mulligan

Schema dump does not honor Sub_Part column

Reported by Ryan Mulligan | August 7th, 2008 @ 11:03 PM | in 2.x

Indexing some fields (text, blob) requires a SubPart field to be set in the Index table. Unfortunately rake db:schema:dump ignores this field and creates a simple addindex in the schema. When the test database tries to use a simple index, it fails because MySQL requires the Sub_part be set.

My recommended fix is to include an extra option in the addindex command to include Subparts.

example of error failing (name is a text field): ryan@rtmlap:~/bs$ rake test:units (in /home/ryan/bs) rake aborted! Mysql::Error: BLOB/TEXT column 'name' used in key specification without a key length: CREATE INDEX taggings ON tags (id, name)

Expected index creation to be:

CREATE INDEX taggings ON tags (id, name(30))

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