Summarising SQL Translation for multiple dbplyr backends

Inspired by @gshotwell, I decided to have a look into bulk translating a ton of functions to SQL. The dplyr system to translate R code to SQL is really cool, but I’ve had some trouble in the past using it to write backend-agnostic code because of slightly different implementations of functions in different database backends. Is there a reference document somewhere of which dplyr commands work on various database backends? \#rstats — Gordon Shotwell (@gshotwell) April 9, 2019 I should also mention that Bob Rudis posted a solution to this as well that includes more backends (this post only considers the ones directly in dbplyr).