PostgreSQL: Documentation: 10: 37.7. Procedural Language Functions

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37.7. Procedural Language Functions
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37.7. Procedural Language Functions

PostgreSQL allows user-defined functions to be written in other languages besides SQL and C. These other languages are generically called procedural languages (PLs). Procedural languages aren't built into the PostgreSQL server; they are offered by loadable modules. See Chapter 41 and following chapters for more information.

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37.6. Function Volatility Categories	Home	37.8. Internal Functions