[jira] [Created] (SPARK-21884) Fix StackOverflowError on MetadataOnlyQuery

["Dongjoon Hyun (JIRA)" <ji...@apache.org>]

Dongjoon Hyun created SPARK-21884:
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             Summary: Fix StackOverflowError on MetadataOnlyQuery
                 Key: SPARK-21884
                 URL: https://issues.apache.org/jira/browse/SPARK-21884
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.2.0
            Reporter: Dongjoon Hyun


{code}
scala> spark.version
res0: String = 2.2.0

scala> sql("CREATE TABLE t_1000 (a INT, p INT) USING PARQUET PARTITIONED BY (p)")
res1: org.apache.spark.sql.DataFrame = []

scala> (1 to 1000).foreach(p => sql(s"ALTER TABLE t_1000 ADD PARTITION (p=$p)"))

scala> sql("SELECT COUNT(DISTINCT p) FROM t_1000").collect
java.lang.StackOverflowError
  at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1522)
{code}



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