Não se assuste! Ninguém está pensando em fazer uma versão do PostgreSQL em Lisp!
Numa discussão recente na pg-hackers, alguém sugeriu que o PostgreSQL fosse re-implementado em C++ (atualmente o código está em C). Entre umas e outras (ironias) e mensagens de primeiro de abril, Tom Lane apontou que o código original do Postgres tinha sido portado de outra linguagem, ainda em Berkeley:
I'm surprised no one pointed out that Postgres has *already* been ported to a new language once. It was originally written in Lisp, and was rewritten in C sometime in the Berkeley years. (Anyone know exactly when or by whom? I don't.) You can still see the effects of that origin in the system's liking for list-based data structures.
But the code base was an order of magnitude smaller and simpler back then, meaning that a fresh port would be at least an order of magnitude harder. Like other respondents, I'm not seeing where we'd get benefits commensurate with the cost.
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