private Expression<K> copyWithoutTrue(And<K> input) {
List<Expression<K>> copy = Lists.newArrayList();
for (Expression<K> expr : input.expressions) {
if (expr instanceof Literal) {
Literal l = (Literal) expr;
if (l.getValue()) {
continue;
}
}
copy.add(expr);
}
if (copy.isEmpty()) {
return Literal.getTrue();
}
return And.of(copy);
}
