jOOQ's debug logging prints executed queries with bind values and result sets, which is helpful during development but can expose sensitive data in production. jOOQ 3.21 commercial distributions introduce a 'redacted columns' feature configurable via code generation settings. By marking specific columns (e.g., BOOK.TITLE) as redacted, their values are masked with asterisks in all text/HTML output including debug logs, preventing accidental leakage of sensitive data.
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