2026年1月13日

摘要： A HiveQL Macro is a way to define a reusable logic fragment (a "mini-function") within a Hive session using standard Hive SQL expressions. Think of it 阅读全文

posted @ 2026-01-13 20:42 ZhangZhihuiAAA 阅读(3) 评论(0) 推荐(0)

HiveQL - Temporary Tables vs. CTE

摘要： Temporary Tables A table that has been created as a temporary table will only be visible to the current session. Data will be stored in the user’s scr 阅读全文

posted @ 2026-01-13 17:41 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0)

HiveQL - Skewed Tables

摘要： In Hive, a Skewed Table is a special type of table designed to handle "data skew"—a situation where one or two specific values appear much more freque 阅读全文

posted @ 2026-01-13 17:30 ZhangZhihuiAAA 阅读(3) 评论(0) 推荐(0)

HiveQL - Difference between 'order by' and 'sort by'

摘要： In HiveQL, the primary difference between ORDER BY and SORT BY lies in how many reducers are used and whether the entire dataset is guaranteed to be s 阅读全文

posted @ 2026-01-13 16:46 ZhangZhihuiAAA 阅读(0) 评论(0) 推荐(0)

Hive - beeline

摘要： How not to show the INFO messages in beeline? To silence INFO messages in Beeline and keep your output clean (showing only errors or query results), y 阅读全文

posted @ 2026-01-13 16:08 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0)


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2026年1月13日