anchor.diff:      "-DBUILD_JSON_EXTENSION=ON"
       "-DBUILD_ODBC_DRIVER=${enableFeature withOdbc}"
       "-DBUILD_PARQUET_EXTENSION=ON"
  -    "-DBUILD_REST=ON"
  -    "-DBUILD_SUBSTRAIT_EXTENSION=ON"
       "-DBUILD_TPCDS_EXTENSION=ON"
       "-DBUILD_TPCE=ON"
       "-DBUILD_TPCH_EXTENSION=ON"
  
positive.code: 
    doInstallCheck = true;
  
    preInstallCheck = lib.optionalString stdenv.isDarwin ''
      export DYLD_LIBRARY_PATH="$out/lib''${DYLD_LIBRARY_PATH:+:}''${DYLD_LIBRARY_PATH}"
    '';
  
  
negative.code: in
  stdenv.mkDerivation rec {
    pname = "duckdb";
    version = "0.5.0";
  
    src = fetchFromGitHub {
      owner = pname;
      repo = pname;
      rev = "v${version}";
      sha256 = "sha256-dU8JXb++8OMEokr+4OyxLvcEc0vmdBvKDLxjeaWNkq0=";
    };
  
    postPatch = ''
      substituteInPlace CMakeLists.txt --subst-var-by DUCKDB_VERSION "v${version}"
  