Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/15896
```Scala
spark.range(1, 10).toDF("id1").write.format("json").saveAsTable("jt1")
spark.range(1, 10).toDF("id2").write.format("json").saveAsTable("jt2")
sql("CREATE VIEW testView AS SELECT * FROM jt1 JOIN jt2 ON id1 ==
id2")
// Cache is empty at the beginning
assert(spark.sharedState.cacheManager.isEmpty)
sql("CACHE TABLE testView")
assert(spark.catalog.isCached("testView"))
// Cache is not empty
assert(!spark.sharedState.cacheManager.isEmpty)
// drop a table referenced by a cached view
sql("DROP TABLE jt1")
-- So far everything is fine
// Failed to unache the view
val e = intercept[AnalysisException] {
sql("UNCACHE TABLE testView")
}.getMessage
assert(e.contains("Table or view not found: `default`.`jt1`"))
// We are unable to drop it from the cache
assert(!spark.sharedState.cacheManager.isEmpty)
```
@hvanhovell Above is the example.
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