PopSQL, a startup that builds a collaborative SQL editor for teams, today announced that it has raised a $3.4 million seed round led by Google’s AI-focused Gradient Ventures fund. Other participants include Y Combinator and FundersClub, as well as angel investors Max Mullen, the co-founder of Instacart; Calvin French-Owen, the CTO of Segment; and Guillermo Rauch, the CEO of Vercel.