# Pastebin pD2RrAxv
      pg_query = attrs:
        let
          libpg_query = fetchurl {
            url = "https://codeload.github.com/lfittl/libpg_query/tar.gz/10-1.0.1";
            sha256 = "0m5jv134hgw2vcfkqlnw80fr3wmrdvgrvk1ndcx9s44bzi5nsp47";
          };
        in {
        dontBuild = false;
        preBuild = ''
          sed -i ext/pg_query/extconf.rb -e "3a \
            require 'fileutils'; \
            FileUtils.cp('${libpg_query}', 'libpg_query.tar.gz') \
          "
          cat ext/pg_query/extconf.rb
        '';
      };