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https://hive.apache.org/docs/latest/admin/adminmanual-metastore-3-0-administration/ You can find an E/R diagram for the metastore here. Download Stand
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posted @ 2025-12-28 21:26
ZhangZhihuiAAA
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https://hive.apache.org/docs/latest/admin/adminmanual-installation/ frank@ZZHPC:~/download$ wget https://dlcdn.apache.org/hive/hive-4.2.0/apache-hive-
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posted @ 2025-12-28 18:31
ZhangZhihuiAAA
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In AI development, a data pipeline is the "nervous system" of the application. While a traditional data pipeline (ETL) is often a linear path ending i
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posted @ 2025-12-28 16:06
ZhangZhihuiAAA
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https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html Prerequisites frank@ZZHPC:~$ sudo apt install ssh frank@ZZH
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posted @ 2025-12-28 10:26
ZhangZhihuiAAA
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Why did the Flink tables I created disappear after restarting the Flink cluster? Flink SQL> SHOW TABLES; Empty set The reason your Flink tables disapp
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posted @ 2025-12-28 09:46
ZhangZhihuiAAA
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MATCH_RECOGNIZE is a powerful ANSI SQL standard feature (introduced in SQL:2016) used for Complex Event Processing (CEP). It allows you to search for
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posted @ 2025-12-27 21:36
ZhangZhihuiAAA
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Flink SQL> CREATE TABLE bounded_pageviews ( > url STRING, > ts TIMESTAMP(3) > ) > WITH ( > 'connector' = 'faker', > 'number-of-rows' = '500', > 'rows-
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posted @ 2025-12-26 15:33
ZhangZhihuiAAA
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In Apache Flink (especially Table/SQL API), streams are often represented as changelogs rather than simple append-only rows. The four event types tell
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posted @ 2025-12-26 12:30
ZhangZhihuiAAA
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金山云数据湖平台用的是Hive，可以添加数据源来连接关系型数据库、MPP数据库、对象存储、Kafka，然后同步数据源的元数据，然后通过数据源来读写其中的数据（表、文件、消息topic），这些操作是如何实现的？ 金山云数据湖平台基于 Hive 构建，其实现“跨源连接、元数据同步、以及统一读写”的核心机
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posted @ 2025-12-25 08:52
ZhangZhihuiAAA
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这是一个非常经典且容易混淆的问题。简单来说：不能。 如果 Hive 的计算引擎设置为 MapReduce，它运行的是 HiveQL，而不是 Spark SQL。虽然两者长得很像（都是 SQL），但它们的“大脑”和“执行逻辑”是完全不同的。 为了帮你彻底理清关系，我们需要区分两个经常被搞混的概念：Hi
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posted @ 2025-12-24 23:27
ZhangZhihuiAAA
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