dbDataType might have an issue with integer64 class in data.frames

[jd4ds]

Hey there,
i might have encountered a small issue with the evaluation of integer64 objects in data.frames to determine their SQL datatype.
It seems everything works fine if integer64 objects get evaluated as a single vector, but as soon as they are part of a data.frame it seems there is problem in finding the correct method.

Here is a reprex;

DBI::dbDataType(
  dbObj = RMariaDB:::mariadb_default(),
  bit64::as.integer64(1L)
)
#> [1] "BIGINT"


DBI::dbDataType(
  dbObj = RMariaDB:::mariadb_default(),
  data.frame(column = 1L)
)
#> column 
#>  "INT"

DBI::dbDataType(
  dbObj = RMariaDB:::mariadb_default(),
  data.frame(column = bit64::as.integer64(1L))
)
#> Error in (function (classes, fdef, mtable) : unable to find an inherited method for function 'dbiDataType' for signature '"integer64"'

^{Created on 2022-07-22 by the reprex package (v2.0.1)}

Thanks!
Janis

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