etseidl commented on code in PR #231: URL: https://github.com/apache/parquet-format/pull/231#discussion_r1502896096
########## Encodings.md: ########## @@ -179,6 +179,12 @@ This encoding is adapted from the Binary packing described in ["Decoding billions of integers per second through vectorization"](http://arxiv.org/pdf/1209.2137v5.pdf) by D. Lemire and L. Boytsov. +Delta encoding is best when used on sorted data, or data with runs of repeated +values. It can also be useful when the range of values is small, such as would +be the case with INT_8 data. It should *not* be used when the range of the data Review Comment: Yes, I agree this wording is a little too strong. I'll change it if this section survives 😄 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
