It'd be awesome if I could run gpq describe and gpq validate on url's. Doing everything on https would be the default, but if s3:// and others are easy that'd be nice too. I'd like to easily check row groups and validity on big remote resources, so it'd be awesome if it supported this. I feel like Brandon mentioned some go library he was liking for that, but forget where I saw that, so thought I'd put up an issue.