Docs: Add Tuning Guide for larger-than-memory queries

[2010YOUY01]

Which issue does this PR close?

• Closes #.

Rationale for this change

Originally suggested by @alamb in #17040 (comment)

This tuning guide is more of a quick note. A more comprehensive, tutorial-style guide is still on my to-do list and I think it should be written once the feature is more mature. See #16177

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

[comphead]

Thanks @2010YOUY01

[alamb]

Thank you @2010YOUY01 and @comphead

I was actually thinking about this guide, but I didn't have the time to write it up. Thank you for doing it!

I left some suggestions for how to make this more concise -- I may have cut out too much detail, but figured I would leave the suggestions for your consideration

Thanks again

[2010YOUY01]

Thank you @2010YOUY01 and @comphead

I was actually thinking about this guide, but I didn't have the time to write it up. Thank you for doing it!

I left some suggestions for how to make this more concise -- I may have cut out too much detail, but figured I would leave the suggestions for your consideration

Thanks again

Thanks for the review!

Let's make it concise now, I think adding a few more sentences of explanation might actually confuse those without the background knowledge. A tutorial-style doc is still needed to describe the full picture.

[alamb]

Let's make it concise now, I think adding a few more sentences of explanation might actually confuse those without the background knowledge. A tutorial-style doc is still needed to describe the full picture.

I agree -- I filed a ticket with some ideas for a blog:

• Blog post about processing larger than memory queries #17089

[alamb]

Thank you @2010YOUY01