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Why partition Glue/Athena tables?
This interview card answers: Why partition Glue/Athena tables? Partitions let queries prune S3 prefixes so Athena scans fewer bytes and Glue jobs write cheaper datasets. Pick columns used in almost every WHERE (date, region). Date=2026-10-27/region=ap-south-1/ under the sales table.
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What this card says
What it is
Partitions let queries prune S3 prefixes so Athena scans fewer bytes and Glue jobs write cheaper datasets.
partition
Why it matters
Pick columns used in almost every WHERE (date, region).
How / example
date=2026-10-27/region=ap-south-1/ under the sales table.