Marko Grujic

Looks like this is now working ```bash $ curl -i -XPOST -H "Content-Type: application/json" -H "Authorization: Bearer write_password" http://127.0.0.1:8080/q -d@-

One last thing that might be missing is handling the non-wildcard scenario, i.e. when someone might want to specify an specific/explicit size for the `FixedSizeList` in the signature.

Yup, looks good!

> which I think could potentially be described as a postgres analytics acclerator (aka it is to postgres what comet is to spark) Yeah, basically that's what we strive for,...

Thanks! > I wonder if we should add a similar optimization for other nodes where computing this is non trivial (like HashJoinExec or HashAggregateExec or FilterExec) Yup, this makes sense...

@alamb, @ozankabak this is not that urgent for us (though it would certainly be nice to have a fix soon). My impression from https://github.com/apache/arrow-datafusion/issues/9084#issuecomment-1921137878 was that the general solution considered...

Superseded by #9346

If #518 is adequate, can we also have a new release? Even an alpha release will do, since we want to be able to publish the [`datafusion-remote-tables`](https://github.com/splitgraph/seafowl/tree/main/datafusion_remote_tables) crate. For some...

I suppose you had in mind supporting Iceberg format for external tables like [we do for Delta tables](https://github.com/splitgraph/seafowl/blob/main/tests/statements/query.rs#L540-L542) already? We could conceivably use something like https://github.com/JanKaul/iceberg-rust to support that.

I've also come to realize that the unofficial json representation is probably not robust/forward-compatible enough, and we should probably just migrate to `serde::Serialize/Deserialize` for the [`Schema`](https://github.com/apache/arrow-rs/blob/6d4b8bbad95c7e4fec0c4f1fb755ad7a1c542983/arrow-schema/src/schema.rs#L180)/[`Field`](https://github.com/apache/arrow-rs/blob/6d4b8bbad95c7e4fec0c4f1fb755ad7a1c542983/arrow-schema/src/field.rs#L36), which is not equivalent:...