I tried, but it seems that there's a limit in SQL that won't allow more than 255. I tried BLOB, but it doesn't look like GL supports that as is.
Is there a limit other than these settings that we can't bypass?
Text Formatted Code
SQL-query:
ALTER TABLE `gl_blocks` CHANGE `rdfurl` `rdfurl` VARCHAR( 300 ) DEFAULT NULL
MySQL said: Documentation
#1074 - Too big column length for column 'rdfurl' (max = 255). Use BLOB instead