Hive supplementary window function

Others 2021-03-19 12:43:36 views: null

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Origin blog.csdn.net/xianyu120/article/details/114583183

Hive supplementary window function

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The Hive window function takes the last piece of data closest to the time based on specific conditions (takes the value of the window function based on the conditions)

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Combined with temporary table in Hive_Hive, FROM ** INSERT multi-table insertion, ROLLUP / CUBE / GROUPING SETS window function to optimize statistics writing logic

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