text: DROP TABLE IF EXISTS tab;
  
  CREATE TABLE tab (col FixedString(2)) engine = MergeTree() ORDER BY col;
  
  INSERT INTO tab VALUES ('AA') ('Aa');
  
  SELECT col, col LIKE '%a', col ILIKE '%a' FROM tab WHERE col = 'AA';
  SELECT col, col LIKE '%a', col ILIKE '%a' FROM tab WHERE col = 'Aa';
  
  DROP TABLE IF EXISTS tab;
  