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Accepted answer
Start with the execution plan, numbers beat guesses.
This worked in dev on sample data but fails at full volume. Details:
Context: Data vault hype, when is it actually justified?
Happy to share schema snippets or metrics if useful.
Accepted answer
Start with the execution plan, numbers beat guesses.
This matches our runbook for skewed keys.
Start with the execution plan, numbers beat guesses.
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