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node.jspostgresqlskygear

What is the meaning of _database_id field in Skygear?

my team is using Skygear.io as project backend. And we found that all records with non-empty _database_id field value will be unable to be retrieved by running queries. It's seems a pre-defined field by Skygear platform but it is lack of information about how to use it. All records with empty value are working as normal.

So, I would like to ask,

  1. What is the meaning of a _database_id field?
  2. How do we make use of it?
Solution

  • Yes. _database_id is a reserved field for Skygear to identify whether the record is saved in public DB or private DB. You may refer to this guide.

    For the concept of public DB and private DB, you may also have a look on this guide.