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Changelog

Source: NEWS.md

rcdf 0.1.6

Security fixes

  • generate_pw(): switched from Mersenne Twister to a cryptographically secure RNG (openssl::rand_bytes).
  • write_parquet(): DuckDB errors no longer leak raw encryption key material in messages.
  • write_rcdf_parquet(): plaintext temp table is now always removed after a shared-connection write.
  • write_rcdf_as(): replaced eval(parse()) dispatch with a safe named-list of function references.
  • hex_to_raw(): added strict input validation (type, length, character set).

Performance enhancements

  • write_parquet() / write_rcdf_parquet(): removed httpfs overhead; shared DuckDB connection across writes; default compression changed to zstd.
  • read_rcdf(): new lazy = TRUE option for DuckDB-backed lazy reads; n_threads for parallel I/O; duplicate PRAGMA calls deduplicated per connection.
  • add_metadata(): label assignment vectorised with batch update.
  • open_duckdb_connection(): no longer forces single-threaded mode.

Bug fixes

  • collect.rcdf_tbl_db(): fixed infinite-dispatch recursion; NULL metadata no longer causes an error.
  • read_parquet(): unencrypted early-return path now correctly applies metadata and as_arrow_table.
  • normalize_key_value(): hex keys no longer misidentified as base-64.

Documentation

  • Main vignette rewritten for general/non-technical users with a step-by-step workflow.
  • Merging vignette completed and fixed.

rcdf 0.1.5

CRAN release: 2026-03-07

Feature and update

  • Added encrypt_value() and decrypt_value() functions, respectively, to encrypt and decrypt string using RSA.
  • Changed “dot env” (.env) reader from read_env() to read_dot_env().

Bug fix

rcdf 0.1.4

CRAN release: 2026-03-03

Features

  • Added get_attr() to retrieve attribute/s from RCDF object.
  • Added read_parquet_tbl() to read encrypted Parquet file and return as lazy data from DuckDB connection.

Breaking change

Enhancements

  • Improved SQL query string interpolation for all DuckDB related codes.

rcdf 0.1.3

CRAN release: 2026-02-12

  • Added merge_rcdf() function to combine multiple RCDF files with different encryption keys into one.
  • Updated read_rcdf() to allow reading of multiple RCDF file with different encryption keys.
  • Added pre_collect argument to read_rcdf() to allow lazy loading the RCDF object.

rcdf 0.1.2

CRAN release: 2025-12-03

rcdf 0.1.1

CRAN release: 2025-10-12

  • Added a NEWS.md file to track changes to the package.