API Formats

[lmangani]

The extension is useless without proper output formats. We should support DuckDB native and extension injected formats such as JSON, CSV for API interaction and possibly other binary protocols such as Parquet, trying to avoid code duplication and library injections. It would be nice to emulate the .mode function available in the DuckDB CLI

Basic Formats

• JSON Support
  • JSONCompact
  • JSONEachRow

[lmangani]

Completed until we need more formats