Yes, looks like it. According to these posts, ORC only uses snappy or zlib compression, while Clickhouse uses double-delta, Gorilla, and T64 algorithms. https:

Yes, looks like it. According to these posts, ORC only uses snappy or zlib compression, while Clickhouse uses double-delta, Gorilla, and T64 algorithms. https://engineering.fb.com/core-data/even-faster-data-at-the-speed-of-presto-orc/ https://engineering.fb.com/core-data/even-faster-data-at-the... https://www.altinity.com/blog/2019/7/new-encodings-to-improve-clickhouse https://www.altinity.com/blog/2019/7/new-encodings-to-improv...