Hello, On Thu, 5 Oct 2023 at 16:42, jacktby jacktby <jacktby@xxxxxxxxx> wrote: > > Hi, I’m writing some kernel codes in pg15, and now I need to make a map struct, I know c-lang doesn’t support this, so does pg support an internal struct? Hopefully your replies. PostgreSQL has hash tables: https://github.com/postgres/postgres/blob/REL_16_0/src/include/utils/hsearch.h This is not exactly a map struct. But it might be suitable for your case. -- Artur
