ShowCurrentNamespaceExec Physical Command¶

ShowCurrentNamespaceExec is a physical command that represents ShowCurrentNamespace logical command at execution time.

scala> sql("SHOW CURRENT NAMESPACE").show(truncate = false)
+-------------+---------+
|catalog      |namespace|
+-------------+---------+
|spark_catalog|default  |
+-------------+---------+

Creating Instance¶

ShowCurrentNamespaceExec takes the following to be created:

• Output attributes
• CatalogManager

ShowCurrentNamespaceExec is created when DataSourceV2Strategy execution planning strategy is executed (and plans a ShowCurrentNamespace logical command).

Executing Command¶

run(): Seq[InternalRow]

run...FIXME

run is part of the V2CommandExec abstraction.