Is there any limitation in filter()/facet() function?

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#1

I was trying to generate a weekly case report with New Relic. The dataset was relatively big. A skeleton query looks like below:

select uniqueCount(key) from EVENT where (... Condition...) facet weekOf(resolvedTime) since 12 months ago limit max

The number was a little off from what it should be. I know that uniqueCount() function only returns approximation number if unique records inspecting are more than 256.

I then try to query data in a different approach.

select count(key) from(select filter(latest(resolvedTime), where ...conditions...) as 'Date' from Event facet key limit max) facet weekof(Date) since 12 months ago limit max

I found an even bigger number off on result. I used the second query for some events with smaller dataset, and the result was pretty good. I wonder if there is any limitation on filter() or facet() clause that is causing my problem.

#2

Hi @qzhang2

There is a standard limit on all results of 2k. IE we will only return 2k rows of data. no matter what the query.

#3

Thanks for replying.

#4

Hey @qzhang2,

Please let us know if you have further questions or need any assistance, we are more than happy to help. I hope you have a great day!