Case sensitivity when translating to SQL

[krlmlr]

Some SQL functions may be case-sensitive, for instance spatial methods in MSSQL. The syntax is a bit weird, e.g. colname.STBuffer(1) for STBuffer(), the call COLNAME.STBUFFER(1) fails.

library(tidyverse)
library(dbplyr)
memdb_frame(a = 1) %>%
  mutate(x = a.STBuffer(1)) %>%
  sql_render()
#> <SQL> SELECT `a`, A.STBUFFER(1.0) AS `x`
#> FROM `opozhizxky`

^{Created on 2018-11-05 by the reprex package (v0.2.1.9000)}

(This example works identically with MSSQL, using SQLite for the reprex.)

What's the reason for converting all function calls to uppercase?

[hadley]

Probably no good reason, except my sense of SQL aesthetics (which is clearly wrong here).

I suspect this would be an easy fix for someone; should just require searching for toupper() and removing the inappropriate ones.