Ziheng Wang

So if a DB supports JDBC, can't you just query it directly with SQL? Sorry I am misunderstanding something here.

Let me do more research into JDBC and its limitations. In an ideal world everything will be Arrow Flight based and life will be amazing but we are quite far...

Thank you for all the information.

@tomtom215 do you know if JDBC tells you how big a SAP HANA table is? I imagine you can query select count (*) to figure that out but I wonder...

Quokka will support ODBC soon.

Approx quantiles and approx median will be implemented with t-digest

Have been done. HLL coming up. Thinking about vendoring Apache DataSketches, might just borrow the Apache code. One pass Welford will be implemented myself.

@melezhik Sorry for the late response. This is a great point. I will be adding some CI later this year. Contributions welcome :1st_place_medal:

That's a bit odd. Seems like a problem with Polars here: https://github.com/pola-rs/polars I don't know why a "build" would fail, Quokka is pure Python and can be installed with pip....

Yeah as I was saying I don't think it's a Quokka problem: ` 20:09:39 :: Installed /usr/lib/python3.10/site-packages/sqlglot-10.0.7-py3.10.egg 20:09:39 :: Searching for polars==0.14.* 20:09:39 :: Reading https://pypi.org/simple/polars/ 20:09:40 :: Downloading https://files.pythonhosted.org/packages/86/f7/7c305976fe2a99c6d8f7a6295866c2227a04d22bcc9baebf3103629c2648/polars-0.14.29.tar.gz#sha256=5e1cde8d6f12b43619a7ac7b04bef03a00cfcd8d116fc2827572298a8fb754c4...