nbenn opened a new issue, #1396:
URL: https://github.com/apache/arrow-adbc/issues/1396
For the DBI integration of ADBC via adbcdrivermanager (adbi), I need the
ability to quote both identifiers, as well as (arbitrary) literals. Currently I
rely exclusively on the default quoting mechanism of DBI, which is problematic
in cases where backends deviate from that standard.
In order for me to switch to the quoting infrastructure of
adbcdrivermanager, quoting of literals needs to become more capable. Some
examples with what I can do with DBI:
```r
DBI::dbQuoteLiteral(DBI::ANSI(), c(1:3, NA))
#> <SQL> 1
#> <SQL> 2
#> <SQL> 3
#> <SQL> NULL
DBI::dbQuoteLiteral(DBI::ANSI(), c(TRUE, FALSE, NA))
#> <SQL> 1
#> <SQL> 0
#> <SQL> NULL
DBI::dbQuoteLiteral(DBI::ANSI(), list(as.raw(1:3), NULL))
#> <SQL> X'010203'
#> <SQL> NULL
DBI::dbQuoteLiteral(DBI::ANSI(), Sys.time())
#> <SQL> '20231222091012'
#> DBI::dbQuoteLiteral(DBI::ANSI(), Sys.Date())
#> <SQL> '2023-12-22'
DBI::dbQuoteLiteral(DBI::ANSI(), as.difftime(1, units = "mins"))
#> <SQL> '00:01:00'
```
The default for string literals is mostly aligned with DBI apart from `NA`
handling
```r
DBI::dbQuoteLiteral(DBI::ANSI(), c("a", NA))
#> <SQL> 'a'
#> <SQL> NULL
adbcdrivermanager::adbc_connection_quote_string(
structure(list(), class = "con"),
c("a", NA)
)
#> [1] "'a'" "'NA'"
```
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