Schema inference is now a native SQL aggregate in Apache AsterixDB, using local schema trees and global merging, and benchmarks show speedups of up to two orders of magnitude over Spark-based tools.
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Introducing Schema Inference as a Scalable SQL Function [Extended Version]
Schema inference is now a native SQL aggregate in Apache AsterixDB, using local schema trees and global merging, and benchmarks show speedups of up to two orders of magnitude over Spark-based tools.