Issue #17: Fix MonetDB compatibility issues

Signed-off-by: Lucas Fernandes de Oliveira <lfoliveira@inf.ufpr.br>
2 jobs for issue/17 in 1 minute and 6 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #38301
monet debian
monet_test

00:01:03

passed #38300
postgres debian
postgres_test

00:01:06