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Window aggregation
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
Every aggregate function can be turned into a window function simply by appending the OVER() clause, e.g.:
-
COUNT(*) OVER () -
SUM(x) OVER () -
MAX(x) OVER () - ...
This also includes user-defined aggregate functions!
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