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PostgreSQL’s 100-argument limit: rethink inputs before raising max_function_args

PostgreSQL’s 100-argument limit: rethink inputs before raising max_function_args

PostgreSQL’s max_function_args is a read-only value, defaulting to 100; changing it requires rebuilding the server and C extensions. Learn why 51 JSON key/value pairs exceed the limit and how rows or arrays can consolidate arguments.

DatabasePostgresql
2026-09-13

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