V2CommandExec Physical Commands¶

V2CommandExec is an extension of the SparkPlan abstraction for physical commands that can be executed and cache the result to prevent multiple executions.

Contract¶

Executing Command¶

run(): Seq[InternalRow]

Executing the command (and computing the result)

See:

• DropNamespaceExec
• TruncateTableExec

Used when:

• V2CommandExec physical command is requested for the result

Implementations¶

• LeafV2CommandExec
• ShowCreateTableExec
• ShowNamespacesExec
• ShowPartitionsExec
• ShowTablesExec
• V2TableWriteExec

Result¶

result: Seq[InternalRow]

result is the cached result of executing the physical command.

result is used when:

• V2CommandExec physical command is requested to doExecute, executeCollect, executeToIterator, executeTake or executeTail