// TODO: cache?
public static LiteralExpression newConstant(Object value, Determinism determinism) {
if (value instanceof Boolean) {
return getBooleanLiteralExpression((Boolean) value, determinism);
} else if (value == null) {
return getNullLiteralExpression(determinism);
}
PDataType type = PDataType.fromLiteral(value);
byte[] b = type.toBytes(value);
if (type.isNull(b)) {
return getTypedNullLiteralExpression(type, determinism);
}
if (type == PVarchar.INSTANCE) {
String s = (String) value;
if (s.length() == b.length) { // single byte characters only
type = PChar.INSTANCE;
}
}
return new LiteralExpression(value, type, b, determinism);
}
