query/view type

Controls how datasets are exposed to queries

Hudi supports the following views of stored data

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No link could be created for 'read optimized view'.
incremental view : Queries on this view only see new data written to the dataset, since a given commit/compaction. This view effectively provides change streams to enable incremental data pipelines.
realtime view : Queries on this view see the latest snapshot of dataset as of a given delta commit action. This view provides near-real time datasets (few mins) by merging the base and delta files of the latest file slice on-the-fly.

Following table summarizes the trade-offs between the different views.

Trade-off	ReadOptimized	RealTime
Data Latency	Higher	Lower
Query Latency	Lower (raw columnar performance)	Higher (merge columnar + row based delta)

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