Github user sureshthalamati commented on the pull request:
https://github.com/apache/spark/pull/13315#issuecomment-221768017
@andrewor14
I tried this PR. It does not seem to work/raise error if user attempts
to truncate on partition table with out specifying the partition spec.
val df = Seq((1 , "john", "CA") ,(2,"Mike", "NY"), (3, "Robert",
"CA")).toDF("id", "name", "state")
df.write.format("parquet").partitionBy("state").saveAsTable("emp16")
sql("truncate table emp16")
sql("select count(*) from emp16").show
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