Editing EPrints 3.5.0 Beta 1 (section)

==== Error when creating context field for citationcache table ====
Some versions of MySQL/MariaDB will not allow a longtext field to have an index assigned to it.  This can be fixed by modifying the code for /opt/eprints3/perl_lib/EPrints/DataObj/CitationCache.pm and editing the line to remove the SQL index for the context field, so that:
 { name=>"context", type=>"longtext", sql_index=>1 },
becomes:
 { name=>"context", type=>"longtext" },
You will then need to run the follow command on your archive to make sure all fields for the CitationCache have been added to the database before you start Apache for the first time.
 /opt/eprints3/bin/epadmin update <ARCHIVE_ID>
We considered making the above code change to Beta 1 but were unsure whether it might affect the way citation caching works.  As this issue only affects some versions of MySQL/MariaDB we felt it better to leave the SQL index in for now and test whether it is required before a future beta release.