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Configure Druid and Superset Metadata Stores in Postgres
About This Task Steps About This Task Druid and Superset require a relational data store to store metadata. To use Postgres for this, install Postgres and create a database fo... -
Configuring Druid and Superset Metadata Stores in MySQL
About This Task Steps About This Task Druid and Superset require a relational data store to store metadata. To use MySQL for this, install MySQL and create a database for the D... -
DDL
Spark DDL To use Iceberg in Spark, first configure Spark catalogs . Iceberg uses Apache Spark’s DataSourceV2 API for data source and catalog implementations. CREATE TABLE Spark... -
Logic
and isEmpty not or cond ifElse allPass anyPass defaultTo both complement either propSatisfies unless when pathSatisfies until and a → b → a | b Added in v0.1.... -
9.4 Multiple figures side by side
You can place multiple figures side by side using the fig.show="hold" along with the out.width option. In the example below, we have set out.width="50%" (see Figure 9.2 for th... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
4.3 Access the document metadata in R code
When an Rmd document is compiled, all of its metadata in the YAML section will be stored in the list object rmarkdown::metadata . For example, rmarkdown::metadata$title gives you... -
Logic
and isEmpty not or cond ifElse allPass anyPass defaultTo both complement either propSatisfies unless when pathSatisfies until and a → b → a | b Added in v0.1.... -
Administrator CLI
Usage Manage kyuubi servers List server Create server Get server Delete server Manage kyuubi engines List engine Get engine Delete engine Usage bin / kyuubi - ctl -- h... -
Install, Start and Test
Next Step The progress of the install displays on the screen. Ambari installs, starts, and runs a simple test on each component. Overall status of the process displays in progres...
