Hi I'm working on DB structure compare. I note that in installer/data/mysql/kohastructure.sql, a few columns define CHARACTER SET and/or COLLATE, with same values as table. Is this usefull or should we remove it ? $ grep 'COLLATE' installer/data/mysql/kohastructure.sql | grep -v ENGIN | grep 'utf8mb4_unicode_ci' `category_name` varchar(32) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '', `font` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'TR', `text_justify` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'L', `auto_renew_error` varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL, -- automatic renewal error `auto_renew_error` varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL, -- automatic renewal error `suppliers_report` MEDIUMTEXT COLLATE utf8mb4_unicode_ci, -- reports received from suppliers entity varchar(16) COLLATE utf8mb4_unicode_ci NOT NULL, code varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL, lang varchar(25) COLLATE utf8mb4_unicode_ci NOT NULL, -- could be a foreign key translation MEDIUMTEXT COLLATE utf8mb4_unicode_ci, `branchcode` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL, -- Fridolin SOMERS <fridolin.somers@biblibre.com> BibLibre, France - software and system maintainer