Clarification on custom function implementation in DuckDB-WASM

[rohin98]

While trying to execute a custom function within an SQL query with return type string, instead of receiving the expected string value, we are consistently getting the result '\x00\x00...'

`
DuckDBUtil.connection.createScalarFunction('testmethod', new arrow.Utf8(), () => { return 'hello' });

const table = await DuckDBUtil.connection.query('SELECT testmethod() as COLUMN');

const row = table.toArray()[0]['COLUMN'];
`

row returns as '\x00\x00\x00\x00\x00' instead of 'hello'

Not sure if this is an issue with the function construction or an issue with receiving the data. Need some clarification on cracking this.

Browser/Environment:
Chrome 129

Device:
macOS 14.7

DuckDB-Wasm Version:
1.28.1-dev106.0

DuckDB-Wasm Deployment:
duckdb wasm browser