scala> intsOut.explain(true)
== Parsed Logical Plan ==
SubqueryAlias memstream
+- MemoryPlan org.apache.spark.sql.execution.streaming.MemorySink@481bf251, [value#21]
== Analyzed Logical Plan ==
value: int
SubqueryAlias memstream
+- MemoryPlan org.apache.spark.sql.execution.streaming.MemorySink@481bf251, [value#21]
== Optimized Logical Plan ==
MemoryPlan org.apache.spark.sql.execution.streaming.MemorySink@481bf251, [value#21]
== Physical Plan ==
LocalTableScan [value#21]
MemoryPlan
Logical Operator
MemoryPlan
is a leaf logical operator (i.e. LogicalPlan
) that is used to query the data that has been written into a MemorySink. MemoryPlan
is created when starting continuous writing (to a MemorySink
).
Tip
|
See the example in MemoryStream. |
When executed, MemoryPlan
is translated to LocalTableScanExec
physical operator (similar to LocalRelation
logical operator) in BasicOperators
execution planning strategy.