thomas_sandmann, Today I learned how to store gene expression data in (multiple) parquet files, and query them as a single dataset from R with the {arrow}, {duckdb} or {sparklyr} packages. I am amazed by {duckdb}'s speed 🚀 - even on my laptop! Here's a blog post with what I learned: https://tomsing1.github.io/blog/posts/parquet/ #TIL #RStats #duckdb #parquet #spark #compbio #rnaseq