[Feedback] Page: /use-timescale/latest/hyperfunctions/percentile-approx/approximate-percentile/

[vanderhoop]

Is it easy to find the information you need?

Yes

Are the instructions clear?

No

How could we improve the Timescale documentation site?

I kept getting an error when running step 2 of the approximate-percentile example at the page in the issue title:

Error: function percentile_agg(uddsketch) does not exist
Error Code: 42883
Hint: No function matches the given name and argument types. You might need to add explicit type casts.

FWIW, I was able to get the example to blend by giving an alias to the percentile_agg call in Step 1 and then changing the percentile_agg argument in Step 2 to the alias. I'm newish to these agg functions, but I suspect it could be a naming collision thing or a need to leverage the rollup API beforehand?

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