After much searching I found that there is an option to include full rows in the changeset array, for use when updating. I have a table with a join sql query as a data source. In that case, the option only returns the primary key. When I don't use the option, the changeset returns the changed data plus the primary key as expected. I need the full data row to update my database.
To reproduce:
- create a database table A with fields c, d, e
- create a database table B with fields d, f
- create an app with a table with the datasource as an sql query: select A.c, A.d, A.e, B.f from A left join B on A.d = B.d
- under the settings of Interaction, set Include full rows in changeset array to on
- add a save action with a query trigger to update the database
- update table A with primary key c
- when inspecting changeset array, only the primary key (of the table in the app) is present for the changed rows
