Hi,
In Spark's Physical Plan what is the explanation for ConvertToUnsafe?
Example:
scala> sorted.filter($"prod_id" ===13).explain
== Physical Plan ==
Filter (prod_id#10L = 13)
+- Sort [prod_id#10L ASC,cust_id#11L ASC,time_id#12 ASC,channel_id#13L
ASC,promo_id#14L ASC], true, 0
+- ConvertToUnsafe
+- Exchange rangepartitioning(prod_id#10L ASC,cust_id#11L
ASC,time_id#12 ASC,channel_id#13L ASC,promo_id#14L ASC,200), None
+- HiveTableScan
[prod_id#10L,cust_id#11L,time_id#12,channel_id#13L,promo_id#14L],
MetastoreRelation oraclehadoop, sales2, None
My inclination is that it is a temporary construct like tempTable created
as part of Physical Plan?
Thanks
Dr Mich Talebzadeh
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