In addition to the great replies folks are sharing, I've found LLMs are quite good at authoring non-trivial SQL. Have effectively been using these to implemnt + learn so much about Postgres
You will find that if you check sources they are lifted almost verbatim. LLMs are a way to cut through the noise, but they are rarely "authoring" anything here.
It's wild how far a little marketing can go to sell the same or an arguably worse product that used to be free and less unethical.