[test][prefix][database] Fix simple/2 code

The migration script didn't properly copy the code.
2 jobs for 64_fix_database_simple_v2 in 23 minutes and 10 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #162949
docker-build
build_linux_36

00:14:23

64.0%
passed #162950
macosx
build_macosx_36

00:23:09

64.0%