Define and name a window specification. Reuse window specification throughout the query sachi=# select region,rank() over (order by year) from sachi.sales; region | rank --------+------ asia | 1 usa | 2 (2 rows) ^ sachi=# select region, rank() over (W) from sachi.sales WINDOW W as (order by year); region | rank --------+------ asia | 1 usa | 2 (2 rows) |
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