### SUBSTRAIT_SCALAR_TEST: v1.0
### SUBSTRAIT_INCLUDE: extension:io.substrait:functions_comparison
# basic: Basic examples without any special cases
is_null(25::i16) = false::bool
is_null(false::bool) = false::bool
is_null(7.823::dec<38, 3>) = false::bool
is_null(null::i16?) = true::bool
is_null(null::dec?<38, 3>) = true::bool