For the same reason that you can use python or perl in postgresql. It's just another language. I have .net code running on several sql servers and to change the database to postgresql I have to reprogram them. On Thursday, October 12, 2023 at 09:44:08 AM GMT-4, Laurenz Albe <laurenz.albe@xxxxxxxxxxx> wrote: On Thu, 2023-10-12 at 06:09 +0000, Sepideh Eidi wrote: > We have some .net assemblies and in your documents, I didn’t find any support for this > type of files that is executable in DB or not. Would you please tell me that .net > assemblies files are executable in PostgreSQL or not? Or is there any way for calling > assembly methods inside DB? There is no support for that. I guess somebody could write an extension PL/net, and it looks like somebody already has: https://github.com/witblitz/pldotnet. That code ptobably won't work with recent PostgreSQL releases, but it could be a basis for you to work upon. My big question for me is: Why on earth would you want to run .NET code inside a database? Why not run it on the client? Yours, Laurenz Albe