You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@flink.apache.org by "godfrey he (Jira)" <ji...@apache.org> on 2021/01/15 07:52:00 UTC
[jira] [Created] (FLINK-20989) Functions in ExplodeFunctionUtil
should handle null data to avoid NPE
godfrey he created FLINK-20989:
----------------------------------
Summary: Functions in ExplodeFunctionUtil should handle null data to avoid NPE
Key: FLINK-20989
URL: https://issues.apache.org/jira/browse/FLINK-20989
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Affects Versions: 1.11.3
Reporter: godfrey he
Assignee: godfrey he
Fix For: 1.11.4
The following test case will encounter NPE:
{code:scala}
val t = tEnv.fromValues(
DataTypes.ROW(
DataTypes.FIELD("a", DataTypes.INT()),
DataTypes.FIELD("b", DataTypes.ARRAY(DataTypes.STRING()))
),
row(1, Array("aa", "bb", "cc")),
row(2, null),
row(3, Array("dd"))
)
tEnv.registerTable("T", t)
tEnv.executeSql("SELECT a, s FROM T, UNNEST(T.b) as A (s)").print()
{code}
Exception is
{code:java}
Caused by: java.lang.NullPointerException
at scala.collection.mutable.ArrayOps$ofRef$.length$extension(ArrayOps.scala:192)
at scala.collection.mutable.ArrayOps$ofRef.length(ArrayOps.scala:192)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:32)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
at org.apache.flink.table.planner.plan.utils.ObjectExplodeTableFunc.eval(ExplodeFunctionUtil.scala:34)
{code}
The reason is functions in ExplodeFunctionUtil do not handle null data
--
This message was sent by Atlassian Jira
(v8.3.4#803005)