v.21.9New Feature
Add Auto-Selecting Compression for INTO OUTFILE
Add compression for INTO OUTFILE that automatically choose compression algorithm. Closes #3473. #27134 (Filatenkov Artur).Why it matters
This feature enhances data export by applying compression directly during theINTO OUTFILE operation, reducing file size and improving storage and transfer efficiency without manual intervention.How to use it
When usingINTO OUTFILE, ClickHouse will automatically select and apply an appropriate compression algorithm to the output file. Users do not need to specify compression parameters explicitly.