Add fields for better identify onboarding user type

[gasolin]

Related to Bug 1412164 - add new column for onboarding telemetry (client side work), we also need add columns in server side.

for firefox_onboarding_sessions_daily table,

• add tour_type string column
  (valid string are new, update, default update)

for firefox_onboarding_events_daily table,

• add timestamp column, (save event trigger time, same format as session_begin)
• add tour_type string column
  (valid string are new, update, default update)
• add tour_source string column
  (valid string are default, watermark, default default, its the same exists in firefox_onboarding_sessions_daily table)
• add bubble_state string column (not send this data now, will append in following client update)
  (valid string are bubble, dot, hide, default bubble)
• add notification_state string column (not send this data now, will append in following client update)
  (valid string are show, hide, finish, default show)

And we will add onboarding-icon-click event in firefox_onboarding_events_daily table, but I think it does not require column change

[gasolin]

@ncloudioj could you help on this?

[ncloudioj]

@gasolin Sure, will do.

Also, just a reminder that once we add those new columns to the database, the existing data records will not have values for them (i.e. the value will be null). It might need some extra care when querying the database.

[gasolin]

got it, thanks for the notice

[gasolin]

related client code is landed into nightly https://bugzilla.mozilla.org/show_bug.cgi?id=1412164

[gasolin]

As discussion on slack, this database change might be delayed due to the database scale up, but should be able to catch up before 57 hits the road

[ncloudioj]

@gasolin This is now fixed.