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changes.mady.by.user SemanticBeeng

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changes.mady.by.user Vinoth Chandar

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Definition

Excerpt

Queries see the latest snapshot of the dataset def~table as of a given commit  or compaction instant action type/ compaction def~instant-action; exposes only the base / columnar files in latest file slices to the queries and guarantees the same columnar query performance compared to a non-hudi columnar dataset. def~table.

Following table summarizes the trade-offs between the different 135861714s.

Trade-offdef~read-optimized-querydef~snapshot-query
Data LatencyHigherLower
Query LatencyLower (raw base / columnar file performance)Higher (merge  base / columnar file+ row based delta/log files)


Kind of