feat(explain-aggregation): explain aggregation COMPASS-5788

[mabaasit]

feat(explain-aggregation): explain aggregation COMPASS-5788

Explain:

Explain.mov

Datalake Explain:

Screen.Recording.2022-05-17.at.12.54.34.mov

Error state:

Description

Checklist

• New tests and/or benchmarks are included
• Documentation is changed or added

Motivation and Context

• Bugfix
• New feature
• Dependency update
• Misc

Open Questions

Dependents

Types of changes

• Backport Needed
• Patch (non-breaking change which fixes an issue)
• Minor (non-breaking change which adds functionality)
• Major (fix or feature that would cause existing functionality to change)

[gribnoysup]

As we recently discovered re-creating HadronDocument in render is really not great so instead of passing a document instance created on every render, you can pass the object that the document is based on instead

Suggested change

	doc={doc}
	doc={plan}

The memoization of the HadronDocument instance will be handled by the Document component itself

[gribnoysup]

Seems like showExplainButton is only gated by the feature flag. Is the plan to support it in the Cloud right away?

[gribnoysup]

Should we disable "Explain" button in the tab header when last stage is merge or out similar to what we do for "Export" or handle it somehow? I'm not sure if explaining out/merge will actually create a collection, if it does, we probably want it just disabled?

[gribnoysup]

As an addition to this TODO, currently because "copy to clipboard" button is part of the Document component and not the card, the whole thing scrolls including the button:

I think we might want to set the height here on the document fields container and not the wrapper card as a way to prevent it, but there is no way to do it now, we would need to change the component interface a bit, and it's a very small thing so totally can be addressed later

[mabaasit]

sure :)