Convert date_nanos example script to runtime field (backport of #71351) #71594
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Runtime fields are much more flexible than script_fields because you
can filter and aggregate on them so we hope folks use them! This
converts the example of using a
date_nanos
field in a script to aruntime field so folks get used to seeing them and hopefully using them.
While I was editing this I took the opportunity to replace the script
with a real-ish example. Scripts that just load the field value are nice
and short but I hope no one uses them in real life because they just add
overhead when compared to accessing the field directly. So I made the
script do something.
Relates to #69291
Co-authored-by: Adam Locke [email protected]