Inf turns into NULL

[eheinzen]

I'm guessing this is a limitation of BigQuery, but in case it's not: R's Inf doesn't make it into BigQuery as such; it turns into NULL, which then gets read back into R as NA.

> x <- data.frame(hi = c(1, 1.2, Inf))
> DBI::dbCreateTable(conn, "blah", x)
> DBI::dbAppendTable(conn, "blah", x, billing = conn@billing)
> DBI::dbGetQuery(conn, "select * from blah")
# A tibble: 3 × 1
     hi
  <dbl>
1   1  
2   1.2
3  NA