Maxim Gekk created SPARK-33963:
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Summary: `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
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
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/ __/__ ___ _____/ /__
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/___/ .__/\_,_/_/ /_/\_\ version 3.0.1
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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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