beliefer commented on code in PR #43259:
URL: https://github.com/apache/spark/pull/43259#discussion_r1354359450
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sql/core/src/main/scala/org/apache/spark/sql/internal/CatalogImpl.scala:
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@@ -760,13 +760,13 @@ class CatalogImpl(sparkSession: SparkSession) extends
Catalog {
}
/**
- * Caches the specified table or view in-memory.
+ * Persist the specified table or view with the default storage level,
Review Comment:
> not exactly, the default storage level of persist is memory and disk, so
it's possible only cache it in memory.
Uh, The persist uses memory and disk. The method name `persist` is a bit
confused. If so, `persist` is not surely persistent. The `cache` is the same as
`persist`. The behavior of these two methods is uncertain.
Please ignore the comments left above.
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