org.apache.spark.sql.execution
ExecutedCommand
Runs this query returning the result as an RDD.
Runs this query returning the result as an RDD.
Runs this query returning the result as an array.
Runs this query returning the result as an array.
Runs this query returning the first n rows as an array.
Runs this query returning the first n rows as an array.
This is modeled after RDD.take but never runs any job locally on the driver.
Overridden make copy also propogates sqlContext to copied plan.
Overridden make copy also propogates sqlContext to copied plan.
Specifies how data is partitioned across different nodes in the cluster.
Specifies how data is partitioned across different nodes in the cluster.
Specifies any partition requirements on the input data for this operator.
Specifies any partition requirements on the input data for this operator.
A concrete command should override this lazy field to wrap up any side effects caused by the command or any other computation that should be evaluated exactly once.
A concrete command should override this lazy field to wrap up any side effects caused by the command or any other computation that should be evaluated exactly once. The value of this field can be used as the contents of the corresponding RDD generated from the physical plan of this command.
The execute() method of all the physical command classes should reference sideEffectResult
so that the command can be executed eagerly right after the command query is created.
A handle to the SQL Context that was used to create this plan.
A handle to the SQL Context that was used to create this plan. Since many operators need access to the sqlContext for RDD operations or configuration this field is automatically populated by the query planning infrastructure.
A physical operator that executes the run method of a
RunnableCommandand saves the result to prevent multiple executions.