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AmazonDynamoDB
Description Key features Options url [string] region [string] accessKeyId [string] secretAccessKey [string] table [string] schema [Config] fields [config] common options ... -
Variable Management
Background Introduction Create Variable Reference variables in Flink SQL Reference variables in args of Flink JAR jobs Background Introduction In the actual production enviro... -
Memory Requirements
The Ambari host should have at least 1 GB RAM, with 500 MB free. To check available memory on any host, run: free - m If you plan to install the Ambari Metrics Service (AMS... -
SQL UDF
Description UDF API UDF Implements Example Example Changelog new version UDF of SQL transform plugin Description Use UDF SPI to extends the SQL transform functions lib.... -
JDO v JPA : ORM
Relationships There are 2 prevalent specification in the Java ORM world. JDO provides the most complete definition, whilst JPA is the most recent. Relationships In this guide w... -
Spark DDL
CREATE TABLE PRIMARY KEY PARTITIONED BY CREATE TABLE … AS SELECT CREATE TABLE … LIKE REPLACE TABLE … AS SELECT DROP TABLE TRUNCATE TABLE ALTER TABLE ALTER TABLE … SET TBLPR... -
Relation
countBy difference differenceWith unionWith union gt gte intersection lt lte max min propEq sortBy pathEq maxBy minBy equals identical eqBy clamp sortWith inn... -
Relation
countBy difference differenceWith unionWith union gt gte intersection lt lte max min propEq sortBy pathEq maxBy minBy countBy (a → String) → [a] → {*} Paramet... -
Chaining
chain value Calling chain will cause all future method calls to return wrapped objects. When you’ve finished the computation, call value to retrieve the final value. Here’s an... -
Object
clone values eqProps keys omit pick pickAll project prop props keysIn path valuesIn toPairs toPairsIn propOr has hasIn assoc assocPath lens pickBy evolve inv...