Filtering data to not always get all data from central

[mathieubossaert]

Possibilities (maybe other possible) :
-> see getodk/central-backend#391

• Make use of __system/submissionDate filter over subtables once it will be possible from the last 2 days (for example)

• Or use it in combination with $expand=* option

• filtering ReviewState (new state to purpose to the team or use the actual ones (ie "approved" for all downloaded submission) ?

  • Be careful to the submission ID that may change

• get submissions one by one with their Submission ID ?

  • In combination with first request filtered by submissionDate