Alternately: SELECT a, b, c, NULL FROM ... SELECT a, b, c, true FROM ... SELECT a, b, c, 'ignore me' FROM ... FWIW, my SQL grammar ignores trailing co

Alternately: SELECT a, b, c, NULL FROM ... SELECT a, b, c, true FROM ... SELECT a, b, c, 'ignore me' FROM ... FWIW, my SQL grammar ignores trailing commas. IIRC, H2 Database does too.