2026年1月15日

摘要： https://hive.apache.org/docs/latest/language/languagemanual-windowingandanalytics/ Windowing functions LEAD LAG FIRST_VALUE LAST_VALUE The OVER clause 阅读全文

posted @ 2026-01-15 10:31 ZhangZhihuiAAA 阅读(3) 评论(0) 推荐(0)

HiveQL - Union

摘要： To apply ORDER BY, SORT BY, CLUSTER BY, DISTRIBUTE BY or LIMIT to an individual SELECT, place the clause inside the parentheses that enclose the SELEC 阅读全文

posted @ 2026-01-15 10:01 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0)

HiveQL - xpath

摘要： In Apache Hive, xpath refers to a family of built-in User-Defined Functions (UDFs) used to parse and extract data from XML strings. Since Hive is desi 阅读全文

posted @ 2026-01-15 09:50 ZhangZhihuiAAA 阅读(4) 评论(0) 推荐(0)

HiveQL - Lateral View

摘要： https://hive.apache.org/docs/latest/language/languagemanual-lateralview/ Lateral view is used in conjunction with user-defined table generating functi 阅读全文

posted @ 2026-01-15 09:40 ZhangZhihuiAAA 阅读(3) 评论(0) 推荐(0)


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2026年1月15日