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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... -
Table Services
What does the Hudi cleaner do? How do I run compaction for a MOR table? What options do I have for asynchronous/offline compactions on MOR table? How to disable all table servic... -
Managing Optimizers
Optimizer container Local container Flink container External container Optimizer group Add optimizer group Edit optimizer group Remove optimizer group Optimizer Scale-out a... -
Set Up the Ambari Server
More Information Before starting the Ambari Server, you must set up the Ambari Server. Setup configures Ambari to talk to the Ambari database, installs the JDK and allows you to... -
IoTDB
Support Those Engines Description Using Dependency For Spark/Flink Engine For SeaTunnel Zeta Engine Key Features Supported DataSource Info Data Type Mapping Sink Options E... -
Spark Tuning Guide
Spark Tuning Guide Writing General Tips Spark failures Hudi consumes too much space in a temp folder while upsert How to tune shuffle parallelism of Hudi jobs ? GC Tuning ... -
Configuration
Catalogs Catalog configuration Using catalogs Replacing the session catalog Using catalog specific Hadoop configuration values Loading a custom catalog SQL Extensions Runtim... -
Snowflake
Support those engines Key features Description Supported DataSource list Database dependency Data Type Mapping Options tips Task Example simple: parallel: parallel bounda... -
Wire Encryption
Server configuration Client configuration Generating SSL material using OpenSSL Generate a certificate/keystore per host Accumulo, through Thrift’s TSSLTransport, provides the... -
Attach-Detach
Detach All On Commit Copy On Attach Serialization of Detachable classes JDO provides an interface to the persistence of objects. JDO 1.0 didn’t provide a way of taking an objec...
