Add Support for Richer SQL Queries(Raw Strings) in customSelect about drift

[simolus3]

Drift is not parsing custom queries. The problem are the double quotes around "Brazil". We compile sqlite3 with the recommended options, which means that things in double quotes are interpreted as references (so sqlite3 tries to search for a column named Brazil and then aborts the query because no such column exists). To use strings in SQL, use single quotes ('Brazil').

To enable legacy support for double-quoted string literals, add a setup parameter to NativeDatabase that calls rawDb.config.doubleQuotedStringLiterals = true.

[PrimeTimeTran]

I poked around the repo trying to identify the issue but nothing sticks out to me here.

Might this be a parser issue? Super confusing why it complains no such column: Brazil when my query is:
SELECT * FROM customers WHERE "Country" = "Brazil";

One more thing, the SELECT works without a WHERE clause.

[PrimeTimeTran]

@simolus3 thanks for your suggestion. That worked like a charm for Native. However I'm targeting web so this is how I got my setup working inside if web.dart.

DatabaseConnection connect() {
  return DatabaseConnection.delayed(Future(() async {
    final result = await WasmDatabase.open(
      databaseName: 'main',
      sqlite3Uri: Uri.parse('sqlite3.wasm'),
      driftWorkerUri: Uri.parse('drift_worker.js'),
      initializeDatabase: () async {
        final data = await rootBundle.load('assets/chinook.db');
        return data.buffer.asUint8List();
      },
    );

    if (result.missingFeatures.isNotEmpty) {
      debugPrint('Using ${result.chosenImplementation} due to unsupported '
          'browser features: ${result.missingFeatures}');
    }
    return result.resolvedExecutor;
  }));
}

Could you make a suggestion for this setup? Poking around inside of wasm.dart here I didn't see how I might do the same thing.

Forgive me if I missed it. Also thanks so much for your work!

[simolus3]

Doing this on the web is a little tricky because your app doesn't own the database, it just accesses it through a separate worker (drift_worker.js). We can't sent closures to workers, so no similar API exists.

You can write your own worker that calls WasmDatabase.workerMainForOpen() which takes a similar callback used to configure all databases opened by that worker. The file could look similar to this one, except that it would add the callback.
You can compile your own worker with dart compile js -O4 web/worker.dart, or automatically with build_runner by adding a dependency on build_web_compilers (that is also what the example app is doing so that I don't have to manually copy the compiled worker into it, see this build configuration for a starting point).