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  • Troubleshooting

    5286 2024-07-01 《Apache Hudi 0.15.0》
    Writing Tables org.apache.parquet.io.InvalidRecordException: Parquet/Avro schema mismatch: Avro field ‘col1’ not found java.lang.UnsupportedOperationException: org.apache.parquet....
  • Clustering

    5261 2024-06-30 《Apache Hudi 0.15.0》
    Background How is compaction different from clustering? Clustering Architecture Overall, there are 2 steps to clustering Schedule clustering Execute clustering Clustering Use...
  • SQL DDL

    5247 2024-06-30 《Apache Hudi 0.15.0》
    Spark SQL Create table Create non-partitioned table Create partitioned table Create table with record keys and ordering fields Create table from an external location Create Ta...
  • Java API

    5235 2024-06-29 《Apache Iceberg 1.5.2》
    Tables Table metadata Scanning File level Transactions Types Primitives Nested types Expressions Expression binding Expression example Modules Tables The main purpose...
  • Async Queries via Celery

    5192 2024-05-25 《Apache Superset 4.0.1》
    Celery Celery Flower Celery On large analytic databases, it’s common to run queries that execute for minutes or hours. To enable support for long running queries that execute b...
  • Design & Concepts

    5189 2024-07-01 《Apache Hudi 0.15.0》
    How does Hudi ensure atomicity? Does Hudi extend the Hive table layout? What concurrency control approaches does Hudi adopt? Hudi’s commits are based on transaction start time i...
  • Using Plugins

    5177 2024-05-20 《Apache Answer 1.3.0》
    Introduction Official plugins Plugin type Build Prerequisites Command Build docker image with plugin from answer base image Third-party plugin Usage Upgrade Develop and c...
  • CLI

    5165 2024-07-01 《Apache Hudi 0.15.0》
    Local set up Hudi CLI Bundle setup Using hudi-cli Inspecting Commits Drilling Down to a specific Commit FileSystem View Statistics Archived Commits Compactions Validate Com...
  • Translations & Localization

    5120 2024-06-03 《Docusaurus 1.14.7》
    Docusaurus Translation Configurations Translating Your Existing Docs Enabling Translations on Pages Gathering Strings to Translate Custom Translation Strings How Strings Get T...
  • Utility

    5086 2024-06-07 《Underscore.js 1.13.6》
    noConflict identity constant noop times random mixin iteratee uniqueId escape unescape result now template noConflict _.noConflict() source Give control of the...