How to do a case sensitive GROUP BY?

Question

If I execute the code below:

with temp as
(
  select \'Test\' as name
  UNION ALL
  select \'TEST\'
  UNION ALL
  select \'test\'
  UNION ALL
  select \'test         


        

Answer 1

In MySQL/MariaDB, if you don't want to use collations or casting to binary, just use:

SELECT MAX(name), COUNT(name)
FROM (
  select 'Test' as name
  UNION ALL
  select 'TEST'
  UNION ALL
  select 'test'
  UNION ALL
  select 'test'
  UNION ALL
  select 'tester'
  UNION ALL
  select 'tester'
) as tmp
group by MD5(name)