feat: add external_id to order key (#4379)* feat: add external_id to order key* revert: DateTime* chore: update all table references* chore: update TTLs* feat: update billing MVs to read from new tables* fix: migration script actually works decently fast* [autofix.ci] apply automated fixes* wip* fix: use higher granularity* fix: delete cache* [autofix.ci] apply automated fixes* docs: update table version* fix: ttl---------Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

chore: slow down inserts (#4399)

chore: slow down inserts

chore: slow down inserts (#4399)