Contributing to dplyr's SQL generation

[karldw]

I'd like to contribute to the database backends in dplyr.  I see that there are several R files that translate R functions into their SQL equivalents, but there's some fancy stuff going on with argument manipulation, and I'm not sure where to start.

Is there a "introduction for contributors" anywhere?  I've read the databases vignette some of the help for the SQL functions, but those are sparse, particularly with regard to implementation details.

Thanks!

[Hadley Wickham]

The best place to start is http://adv-r.had.co.nz/dsl.html (and the two previous chapters). That'll give you the basic tools to understand how the SQL translation code works. 

Hadley

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[karldw]

Great, thank you!

Karl