getNerf(ctx context.Context, dEnv *env.DoltEnv, apr *argparser.ArgParseResults)
: (rebase.NeedsRebaseFn, error)
processFilterQuery(ctx context.Context, dEnv *env.DoltEnv, cm *doltdb.Commit, query string, mt missingTbls)
: (*doltdb.RootValue, error)