[
https://issues.apache.org/jira/browse/SPARK-23095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li updated SPARK-23095:
----------------------------
Affects Version/s: 2.2.2
> Decorrelation of scalar subquery fails with java.util.NoSuchElementException.
> -----------------------------------------------------------------------------
>
> Key: SPARK-23095
> URL: https://issues.apache.org/jira/browse/SPARK-23095
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.2, 2.3.0
> Reporter: Dilip Biswal
> Assignee: Dilip Biswal
> Priority: Major
> Fix For: 2.3.0
>
>
> The following SQL involving scalar correlated query returns a map exception.
> {code:java}
> SELECT t1a
> FROM t1
> WHERE t1a = (SELECT count
> FROM t2
> WHERE t2c = t1c
> HAVING count >= 1)
> {code}
> {code:java}
>
> key not found: ExprId(278,786682bb-41f9-4bd5-a397-928272cc8e4e)
> java.util.NoSuchElementException: key not found:
> ExprId(278,786682bb-41f9-4bd5-a397-928272cc8e4e) at
> scala.collection.MapLike$class.default(MapLike.scala:228) at
> scala.collection.AbstractMap.default(Map.scala:59) at
> scala.collection.MapLike$class.apply(MapLike.scala:141) at
> scala.collection.AbstractMap.apply(Map.scala:59) at
> org.apache.spark.sql.catalyst.optimizer.RewriteCorrelatedScalarSubquery$.org$apache$spark$sql$catalyst$optimizer$RewriteCorrelatedScalarSubquery$$evalSubqueryOnZeroTups(subquery.scala:378)
> at
> org.apache.spark.sql.catalyst.optimizer.RewriteCorrelatedScalarSubquery$$anonfun$org$apache$spark$sql$catalyst$optimizer$RewriteCorrelatedScalarSubquery$$constructLeftJoins$1.apply(subquery.scala:430)
> at
> org.apache.spark.sql.catalyst.optimizer.RewriteCorrelatedScalarSubquery$$anonfun$org$apache$spark$sql$catalyst$optimizer$RewriteCorrelatedScalarSubquery$$constructLeftJoins$1.apply(subquery.scala:426)
> {code}
> In this case, after evaluating the HAVING clause "count(*) > 1" statically
> against the binding of aggregtation result on empty input, we determine
> that this query will not have a the count bug. We should simply return
> the evalSubqueryOnZeroTups with empty value.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
