Fix SQL translation for lag()
and lead()
#45
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Hi!
Just a quick PR so Drill doesn't error out when using
lead()
orlag()
with dbplyr SQL translation. Before this, the value fordefault
(NA
by default) would get passed in as a third argument (e.g.LAG(variable1, 1, NA)
) which causes Drill to throw an error that refers users to this Jira ticket.This implementation does pass through the value for
n
, which is1L
by default. Drill doesn't currently support any other value besides 1, but this implementation works and will be forwards-compatible if the limitation gets lifted in the future.