Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/15168
It sounds like the implementation of this PR does not support data source
tables. Please try the following example.
```Scala
spark
.range(1).select('id as 'a, 'id as 'b, 'id as 'c, 'id as 'd).write
.bucketBy(2, "b").sortBy("c").partitionBy("d")
.saveAsTable("t1")
sql("DESC FORMATTED t1 partition (d=1)").show(100, false)
```
The error you will get is:
```
org.apache.hadoop.hive.ql.metadata.Table.ValidationFailureSemanticException:
table is not partitioned but partition spec exists: {d=1};
```
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