A <u>[similarly impactful change](https://sqlite.org/src/vdiff?from=9282bcde301cee2a&to=38d9dbca16607801)</u>, inspired by your suggestion and just checked-in, permits the target table schema to be specified. This can be "temp" for temporary tables or can refer to an ATTACH'ed DB. (Or, it can be set to "main", needlessly.)