message: These variables are now private
diff: @@ -343,15 +343,15 @@ SEXP duckdb_prepare_R(SEXP connsexp, SEXP querysexp) {
  SET_VECTOR_ELT(retlist, 0, querysexp);
  SET_VECTOR_ELT(retlist, 1, stmtsexp);
  - SEXP stmt_type = cpp_str_to_strsexp({StatementTypeToString(stmtholder->stmt->type)});
  + SEXP stmt_type = cpp_str_to_strsexp({StatementTypeToString(stmtholder->stmt->GetStatementType())});
  SET_VECTOR_ELT(retlist, 2, stmt_type);
  - SEXP col_names = cpp_str_to_strsexp(stmtholder->stmt->names);
  + SEXP col_names = cpp_str_to_strsexp(stmtholder->stmt->GetNames());
  SET_VECTOR_ELT(retlist, 3, col_names);
  vector<string> rtypes;
  - for (auto &stype : stmtholder->stmt->types) {
  + for (auto &stype : stmtholder->stmt->GetTypes()) {
  string rtype = "";
  switch (stype.id()) {
  case LogicalTypeId::BOOLEAN:
  