THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Definition
Type that determines how data will be laid out as file and stored, inside a def~table.
#todo verify
Following table summarizes the trade-offs between these two dataset types
Trade-off | def~copy-on-write | def~merge-on-read |
---|---|---|
Data Latency | Higher | Lower |
Update cost (I/O) | Higher (rewrite entire def~table parquet) | Lower (append to `delta log`) |
Write Amplification | Higher | Lower (depending on compaction strategy to the def~table parquet) |