I will be extremely surprised if Microsoft build this for open source databases, however someone else will definitely build it if you don't, that is completely true :-)
Microsoft is heavily investing in Postgres and its ecosystem, so I wouldn't be extremely surprised if we would do this. We're definitely building things to combine AI with Postgres[1]. Although afaik no-one is working actively on query generation using AI.
But I actually did a very basic POC of "natural language queries" in Postgres myself last year:
Conference talk about it: https://youtu.be/g8lzx0BABf0?si=LM0c6zTt8_P1urYC Repo (unmaintained): https://github.com/JelteF/pg_human
1: https://techcommunity.microsoft.com/t5/azure-database-for-po...