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  • Table Watermark

    5289 2024-06-26 《Apache Amoro 0.6.1》
    Table freshness Table watermark Table freshness Data freshness represents timeliness, and in many discussions, freshness is considered one of the important indicators of data q...
  • JDOQL

    5288 2024-05-25 《Apache JDO 3.2.1》
    JDOQL Single-String JDOQL Accessing Fields Data types : literals Operators precedence Concatenation Expressions Example 1 - Use of Explicit Parameters Example 2 - Use of Impl...
  • Schema Evolution

    5285 2024-06-28 《Apache Hudi 0.15.0》
    Schema Evolution on Write Type Promotions Schema Evolution on read Adding Columns Altering Columns Deleting Columns Renaming columns Schema Evolution in Action Related Reso...
  • Flink Connector

    5271 2024-06-29 《Apache Iceberg 1.5.2》
    Table managed in Hive catalog. Table managed in hadoop catalog Table managed in custom catalog A complete example. Apache Flink supports creating Iceberg table directly withou...
  • Setup Options

    More Information The following options are frequently used for Ambari Server setup. -j (or —java-home) Specifies the JAVA_HOME path to use on the Ambari Server and all hosts i...
  • Spark Getting Started

    5252 2024-06-26 《Apache Amoro 0.6.1》
    Paimon Format Mixed Format Adding catalogs Creating a table Writing to the table Reading from the table The Iceberg Format can be accessed using the Connector provided by Ic...
  • DataHub

    5249 2024-06-30 《Apache Hudi 0.15.0》
    Configurations Example DataHub is a rich metadata platform that supports features like data discovery, data obeservability, federated governance, etc. Since Hudi 0.11.0, you c...
  • SSO Integration

    Background SSO login workflow How to enable SSO login Note Background As an enterpise practice, it’s common to apply Single sign-on (SSO) across all applications, so that use...
  • Flink Writes

    5208 2025-03-11 《Apache Iceberg 1.8.1》
    Flink Writes Iceberg support batch and streaming writes With Apache Flink ‘s DataStream API and Table API. Writing with SQL Iceberg support both INSERT INTO and INSERT OVERWRIT...
  • 元数据文档

    表概览 用户 队列 数据源 项目 资源 告警 命令 流程 任务 核心表Schema t_ds_process_definition t_ds_process_instance t_ds_task_instance t_ds_schedules t_ds_command 表概览 表名 表信息 t_ds_access_t...