Implement the following:

<
>
<=
>=
=
<>

for pairs of

(timestamp, timestamp)
(timestamp, string)

Note that we have automatic implementation for <= if there is implementation for > etc. This implementation resides in

https://github.com/questdb/questdb/blob/master/core/src/main/java/io/questdb/griffin/FunctionFactoryCache.java

While it is possible to rely

For example, given a simple pipeline such as:

Pipeline p = Pipeline.create();
p.readFrom(TestSources.items("the", "quick", "brown", "fox"))
 .aggregate(aggregator)
 .writeTo(Sinks.logger());

I'd like aggregator to be something requiring a non-serialisable dependency to do its work.

I know I can do this:

Pipeline p = Pipeline.create();
p.readFrom(TestSource