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manhtai · Dec 14, 2023 · 2e59bbb · 2e59bbb
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+---
+title: "Optimize Redshift Query Using Window Functions"
+date: 2023-12-14T22:26:56+07:00
+tags: ["AWS", "SQL", "Redshift"]
+draft: true
+---
+
+When writing query to aggregate big data on Redshift, normal JOIN will hurt
+the performance. Try to convert them into window functions instead.