There isn’t a SQL statement that directly maps |SQLContext.isCached|,
but you can use |EXPLAIN EXTENDED| to check whether the underlying
physical plan is a |InMemoryColumnarTableScan|.
On 12/13/14 7:14 AM, Judy Nash wrote:
Hello,
Few questions on Spark SQL:
1)Does Spark SQL support equivalent SQL Query for Scala command:
IsCached(<table name>) ?
2)Is there a documentation spec I can reference for question like this?
Closest doc I can find is this one:
https://spark.apache.org/docs/1.1.0/sql-programming-guide.html#deploying-in-existing-hive-warehouses
Thanks,
Judy
