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  • SQL Functions

    String Functions ASCII CHAR_LENGTH / LENGTH OCTET_LENGTH CONCAT CONCAT_WS HEXTORAW LOWER / LCASE UPPER / UCASE LEFT RIGHT LOCATE / INSTR / POSITION LPAD RPAD LTRIM RT...
  • Summary Statistics

    6634 2024-06-22 《Apache Accumulo 2.x》
    Overview Inaccuracies Configuring Permissions Bulk import Examples Overview Accumulo has the ability to generate summary statistics about data in a table using user defined...
  • ClickhouseFile

    Description Key features Options host [string] database [string] table [string] username [string] password [string] sharding_key [string] clickhouse_local_path [string] co...
  • about

    SeaTunnel Engine Cluster Management Core functions Quick Start SeaTunnel Engine SeaTunnel Engine is a community-developed data synchronization engine designed for data synchr...
  • Hive

    Description Key features Options table_name [string] metastore_uri [string] hdfs_site_path [string] hive_site_path [string] hive.hadoop.conf [map] hive.hadoop.conf-path [str...
  • SQL Server

    Support SQL Server Version Support Those engines Description Using Dependency For Spark/Flink Engine For SeaTunnel Zeta Engine Key Features Supported DataSource Info Databa...
  • Fetch Plan/Groups

    6607 2024-05-25 《Apache JDO 3.2.1》
    Default Fetch Group Named Fetch Groups Dynamic Fetch Groups Fetch Depth Fetch Size When an object is retrieved from the datastore by JDO typically not all fields are retrieve...
  • Annotations

    6606 2024-05-25 《Apache JDO 3.2.1》
    @PersistenceCapable @PersistenceAware @Cacheable @EmbeddedOnly @Inheritance @Discriminator @DatastoreIdentity @Version @PrimaryKey @FetchPlans @FetchPlan @FetchGroups @...
  • 2.1 What happens when we render?

    6591 2024-05-09 《R Markdown Cookbook》
    References R Markdown combines several different processes together to create documents, and one of the main sources of confusion from R Markdown is how all the components work t...
  • Wire Encryption

    6591 2024-06-22 《Apache Accumulo 2.x》
    Server configuration Client configuration Generating SSL material using OpenSSL Generate a certificate/keystore per host Accumulo, through Thrift’s TSSLTransport, provides the...