Marc Boeker

Static linking on Windows broken

7

When compiling the amalgamation file to build a static library the compiler complains about `definition is marked dllimport`. Others have this [problem too](https://github.com/duckdb/duckdb/discussions/2774#discussioncomment-3781570). But when adding a `-DDUCKDB_BUILD_LIBRARY` the errors...

Optimize map scanning

1

Maybe we can optimize the map scanning by using a struct instead of a map as described in #72.