v.24.2New Feature
LZ4HC Codec Adds Faster Level 2 with Reduced Compression
The codecLZ4HCwill accept a new level 2, which is faster than the previous minimum level 3, at the expense of less compression. In previous versions,LZ4HC(2)and less was the same asLZ4HC(3). Author: Cyan4973. #60090 (Alexey Milovidov).
Why it matters
This feature allows users to choose a faster compression level forLZ4HC, improving compression speed at the cost of reduced compression ratio. It is useful for scenarios where compression speed is more critical than compression ratio.How to use it
To use the new compression level, specifyLZ4HC(2) as the codec in your table or column compression settings. Previously, LZ4HC(2) was treated the same as LZ4HC(3), but now it provides a faster compression option.