IO Error: Failed to send message: IO Error: Transferred a partial file with DuckDB 2.0.0 #39

I'm trying out the ADBC Quack driver with DuckDB 2.0.0. I was able to successfully run a query that returned 1000 rows, however when I tried to run a query that returned 1M rows, I saw this error from the driver: input/output error: IO Error: Failed to send message: IO Error: Transferred a partial file error for HTTP POST to 'http://localhost:9494/quack'.

Tried to narrow down what amounts cause the query to fail:
SELECT * FROM "memory"."main"."test1m" LIMIT 1000; ✅ works
SELECT * FROM "memory"."main"."test1m" LIMIT 100000; ✅ works
SELECT * FROM "memory"."main"."test1m" LIMIT 400000; ✅ works
SELECT * FROM "memory"."main"."test1m" LIMIT 500000; ❌ fails
SELECT * FROM "memory"."main"."test1m" LIMIT 1000000; ❌ fails

The data itself isn't particularly interesting (export from Overture Maps data). There are 15 columns. It's an in-memory table in DuckDB.

I'm using the driver with Go 1.25.0.

Driver version:
name = 'quack'
version = '0.1.0'
platform = 'macos_arm64'