\edit
Edits the query buffer (or specified file) with an external editor. When the editor exits, its content is copied back to the query buffer. If no argument is given, the current query buffer is copied to a temporary file which is then edited in the same fashion.
The new query buffer is then re-parsed according to the normal rules of vsql, where the whole buffer up to the first semicolon is treated as a single line. (Thus you cannot make scripts this way. Use \i for that.) If there is no semicolon, vsql waits for one to be entered (it does not execute the query buffer).
vsql searches the environment variables VSQL_EDITOR, EDITOR, and VISUAL (in that order) for an editor to use. If all of them are unset, vi is used on Linux systems, notepad.exe on Windows systems.
Syntax
\e[dit] [ file ]