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docs: add rollup join recipe for FX rates with mixed refresh cadences#10906

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docs: add rollup join recipe for FX rates with mixed refresh cadences#10906
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@mintlify mintlify Bot commented May 19, 2026

Adds a new pre-aggregations recipe showing how to use rollup_join to combine:

  • A heavy orders_rollup (slow refresh, e.g. hourly) with amounts pre-aggregated by currency
  • A lightweight fx_rates_rollup (fast refresh, e.g. every minute) with currency-to-USD rates

The ephemeral rollup_join serves currency-converted queries without rebuilding the heavy fact rollup whenever FX rates change.

Added to the Recipes → Pre-aggregations group in docs.json.

@mintlify mintlify Bot requested a review from keydunov as a code owner May 19, 2026 15:39
@github-actions github-actions Bot added the pr:community Contribution from Cube.js community members. label May 19, 2026
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mintlify Bot commented May 19, 2026

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