mysql fix encoding

gistfile1.sql

SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, ' CHARACTER SET UTF8 COLLATE utf8_bin;')
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = 'jira'
AND DATA_TYPE != 'varchar'
AND
(
    CHARACTER_SET_NAME != 'utf8'
    OR
    COLLATION_NAME != 'utf8_bin'
)
UNION

SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, '(', CHARACTER_MAXIMUM_LENGTH, ') CHARACTER SET UTF8 COLLATE utf8_bin;')
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = 'jira'
AND DATA_TYPE = 'varchar'
AND
(
    CHARACTER_SET_NAME != 'utf8'
    OR
    COLLATION_NAME != 'utf8_bin'
)
UNION
SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, ' CHARACTER SET UTF8 COLLATE utf8_bin', (CASE WHEN IS_NULLABLE = 'NO' THEN ' NOT NULL' ELSE '' END), ';')
FROM information_schema.COLUMNS 
WHERE TABLE_SCHEMA = 'jira'
AND DATA_TYPE != 'varchar'
AND 
(
	CHARACTER_SET_NAME != 'utf8'
	OR
	COLLATION_NAME != 'utf8_bin'
)
UNION

SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, '(', CHARACTER_MAXIMUM_LENGTH, ') CHARACTER SET UTF8 COLLATE utf8_bin', (CASE WHEN IS_NULLABLE = 'NO' THEN ' NOT NULL' ELSE '' END), ';')
FROM information_schema.COLUMNS 
WHERE TABLE_SCHEMA = 'jira'
AND DATA_TYPE = 'varchar'
AND 
(
	CHARACTER_SET_NAME != 'utf8'
	OR
	COLLATION_NAME != 'utf8_bin'
)