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RAGFlowChainR (development version)

• Wrapped FTS-related tests in tryCatch() + skip() to avoid segmentation faults on Fedora-clang during CRAN checks.
• Informative skip() messages added for systems without FTS extension support.
• Ensured all tests pass cleanly on platforms with partial DuckDB extension support.
• Maintained full feature test coverage in interactive/development environments.
• No user-facing changes or exported API modifications.

RAGFlowChainR 0.1.1

• Prevented segfaults on CRAN by disabling the experimental vss extension during checks.

• Fallback to FLOAT[] column type when vss is unavailable, avoiding Fedora-clang binary-extension errors.

• create_vectorstore() now:

  • Skips vss installation/loading under CRAN but retains support in dev environments.
  • Returns a persistent DuckDB connection (no longer auto-disconnects).

• insert_vectors():

  • Handles single-column frames safely using drop = FALSE.
  • Dynamically switches between array_value() and list_value() based on schema.

• build_vector_index():

  • Skips HNSW index creation when VECTOR[] columns are missing (with a warning).

• RAG chain integration:

  • Safely mirrors vss-guard logic in connect_vectorstore() and create_rag_chain().

• DESCRIPTION and metadata:

  • Set minimum required version: duckdb (>= 0.10.0) and testthat (>= 3.0.0).
  • Added Config/testthat/edition: 3 for consistent test behavior.
  • Tidied Description field by removing unnecessary single quotes around names.
  • Expanded common acronyms like HNSW, LLM, etc.

• Testing improvements:

  • Suppressed non-critical test warnings.
  • Removed fragile FTS assertions (fts_main).
  • Introduced mock_embed() and dummy_embed() to remove dependency on external APIs.
  • Skipped RAG-chain integration tests on CRAN and gated test-data downloads.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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