hard20 pts · first answer countshudilakehouse

Copy-on-write vs merge-on-read

A table receives a heavy stream of small updates every minute and is read a few times per hour. Which storage strategy, offered by Hudi (and similar options in Delta and Iceberg), usually fits best?

A.Copy-on-write, rewriting whole files on every updateB.Plain CSV appends with no table formatC.Merge-on-read, writing changes to delta logs or delete files and merging them at read time or in compactionD.A full table overwrite every minute

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Copy-on-write vs merge-on-read

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