if (isFixedWidth) { // if column can't be null
return node.isNegate() ? null :
newKeyParts(childSlot, node, type.getKeyRange(new byte[SchemaUtil.getFixedByteSize(column)], true,
KeyRange.UNBOUND, true));
} else {
KeyRange keyRange = node.isNegate() ? KeyRange.IS_NOT_NULL_RANGE : KeyRange.IS_NULL_RANGE;
return newKeyParts(childSlot, node, keyRange);
}
}