if (constant == null) {
continue;
}
if (constant instanceof SqlConstant) {
node.removeChildNode(sqlNull);
and.removeChildNode(isNotNull);
if (node.getNumberOfArguments() == 1) {
replace(node, node.getArg(0));
}
if (and.getNumberOfArguments() == 1) {
replace(and, and.getArg(0));