Merge the pre-processed landings of every form version

Binds the long v2 and v3 tables with the frozen v1 snapshot. Column reconciliation across form versions now happens in preprocess_landings(), one version at a time, so this is a plain bind.

Usage

merge_landings(log_threshold = logger::DEBUG)

Arguments

log_threshold

The (standard Apache logj4) log level used as a threshold for the logging infrastructure. See logger::log_levels.

Value

No output. This function is used for its side effects.

Details

The parameters needed in config.yml are:

surveys:
  landings:
    v1:
      frozen:
        file_prefix:
        version:
    v2:
      preprocessed:
        file_prefix:
        version:
    v3:
      preprocessed:
        file_prefix:
        version:
    merged:
      file_prefix:
storage:
  google:
    key:
    options: