I’m trying to think through when I’d reach for this over jsonb… I guess the fact that there’s an enforced schema? And that you could do aggregations on your SQLite db? Or maybe if you wanted to send the whole delete db to a client??
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In addition to the PostgreSQL `SQLITE` type, pglite-fusion provides the `query_sqlite`` function for querying SQLite databases and the `execute_sqlite` function for updating them. Additional functions are listed in the project’s README.
The pglite-fusion extension is written in Rust using the pgrx framework [1].
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Implementation Details
The PostgreSQL `SQLITE` type is stored as a CBOR-encoded `Vec<u8>`. When a query is made, this `Vec<u8>` is written to a random file in the `/tmp` directory. SQLite then loads the file, performs the query, and returns the result as a table containing a single row with an array of JSON-encoded values.
The `execute_sqlite` function follows a similar process. However, instead of returning query results, it returns the contents of the SQLite file (stored in `/tmp`) as a new `SQLITE` instance.
I have bad news for you [0] about SQLite’s view on schema consistency.
It's easy enough to replicate those constraints to the client if you want the client to do ahead of time validation, but your source of truth lives in the database...
I wouldn't survive with SQLite.
Completely agree that the DB should be the arbiter of validity. Constraints are a good thing.