mlr3db (development version) Unreleased

  • Set a primary key for SQLite data bases generated from data frames.
  • Resolved a warning signaled by dplyr-1.0.0.

mlr3db 0.1.5 2020-02-19

  • as_data_backend() method to construct a DataBackendDplyr now specialized to operate on objects of type "tbl_lazy" (was "tbl" before). This way, local "tbl" objects such as tibbles are converted to a DataBackendDataTable by mlr3::as_data_backend.data.frame().

mlr3db 0.1.4 2020-02-05

  • Connections can now be automatically re-connected via a user-provided function.
  • DataBackendDplyr now has a finalizer which automatically disconnects the data base connection during garbage collection.

mlr3db 0.1.3 2019-10-29

  • During construction of DataBackendDplyr, you can now select columns to be converted from string to factor. This simplies the work with SQL databases which do not naturally support factors (or where the level information is lost in the transaction).

mlr3db 0.1.2 2019-08-26

  • Fixed $distinct() to not return missing values per default.
  • Added na_rm argument to $distinct().
  • Renamed as_sqlite() to as_sqlite_backend()

mlr3db 0.1.1 2019-08-01

  • Initial release.