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  • Query API

    5493 2024-05-25 《Apache JDO 3.2.1》
    Creating a query Closing a query Named Query Saving a Query as a Named Query Query Extensions Setting query parameters Compiling a query Executing a query Result Class Con...
  • Quickstart

    5475 2024-05-07 《GitHub Cli》
    About GitHub CLI Prerequisites Some useful commands Viewing your status Viewing a repository Cloning a repository Creating a repository Working with issues Working with pul...
  • Setup

    5444 2024-06-21 《Apache Accumulo 2.x》
    User Manual (2.x and 3.x) Master/Manager naming Setup for testing or development Setup for Production Configuring Accumulo Initialization Run Accumulo Run individual Accumulo...
  • Troubleshooting

    5424 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....
  • SQL DDL

    5415 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...
  • Clustering

    5406 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...
  • Java API

    5393 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

    5344 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...
  • PyPI

    5344 2024-05-24 《Apache Superset 4.0.1》
    OS Dependencies ​ Python Virtual Environment ​ Installing and Initializing Superset ​ This page describes how to install Superset using the apache-superset package publis...
  • Design

    5343 2024-06-21 《Apache Accumulo 2.x》
    Background Data Model Architecture Components Tablet Server Garbage Collector Manager Tracer Monitor Compactor (experimental) Compaction Coordinator (experimental) Scan S...