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https://issues.apache.org/jira/browse/SPARK-33963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17257483#comment-17257483
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Maxim Gekk commented on SPARK-33963:
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I am working on a bug fix.
> `isCached` return `false` for cached Hive table
> -----------------------------------------------
>
> Key: SPARK-33963
> URL: https://issues.apache.org/jira/browse/SPARK-33963
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.1.0, 3.2.0
> Reporter: Maxim Gekk
> Priority: Major
>
> The same works in Spark 3.0 but fails in Spark 3.2.0-SNAPSHOT (and 3.1.0
> probably):
> *Spark 3.0:*
> {code:scala}
> Welcome to
> ____ __
> / __/__ ___ _____/ /__
> _\ \/ _ \/ _ `/ __/ '_/
> /___/ .__/\_,_/_/ /_/\_\ version 3.0.1
> /_/
> scala> sql("CREATE TABLE tbl (col int)")
> res2: org.apache.spark.sql.DataFrame = []
> scala> spark.catalog.isCached("tbl")
> res3: Boolean = false
> scala> sql("CACHE TABLE tbl")
> res4: org.apache.spark.sql.DataFrame = []
> scala> spark.catalog.isCached("tbl")
> res5: Boolean = true
> {code}
> *Spark master:*
> {code:scala}
> Welcome to
> ____ __
> / __/__ ___ _____/ /__
> _\ \/ _ \/ _ `/ __/ '_/
> /___/ .__/\_,_/_/ /_/\_\ version 3.2.0-SNAPSHOT
> /_/
> scala> sql("CREATE TABLE tbl (col int)")
> res1: org.apache.spark.sql.DataFrame = []
> scala> spark.catalog.isCached("tbl")
> res2: Boolean = false
> scala> sql("CACHE TABLE tbl")
> res3: org.apache.spark.sql.DataFrame = []
> scala> spark.catalog.isCached("tbl")
> res4: Boolean = false
> {code}
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