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From John Omernik <j...@omernik.com>
Subject Documentation Issue
Date Thu, 03 Jan 2019 15:20:42 GMT
Hey all, I was looking for some tools to help me add/subtract dates, and I
went to:


TIMESTAMPDIFF and TIMESTAMPADD where there, and I got excited, I organized
my query, and tried to run them and got the error below. So I tried
troubleshooting. 30 minutes later, after reviewing my query, reviewing the
docs, reviewing all the things, I came here, as I did that, I see there is
a new Drill Release... hmmm. On a hunch, I command+F and sure enough, the
function I was trying to use was just added in 1.15, (I am running 1.14) .

So, A. I think the anytime a doc is updated to reflect a new function, we
should add "Added in Drill version 1.15"  The error I got didn't tell me
the function didn't exist, and was not helpful. This caused me to go down a
30 minute rabbit hole. This is a bad user experience.

B. I see that sys.functions is in the 1.15 release. This is awesome. I
think we should add a min_drill_version column to this though. For those
functions that are added beyond 1.15, we should know where they sit. This
will help us create a process that can auto update Documentation as well.
Anytime a new function is added, we can run a query that shows the those
not in the docs.


SYSTEM ERROR: AssertionError: todo: implement syntax
SPECIAL(Reinterpret(-($0, ITEM($2, 'charge_state_ts'))))

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