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Posted to issues@flink.apache.org by "Zou (Jira)" <ji...@apache.org> on 2020/10/25 09:52:00 UTC
[jira] [Updated] (FLINK-19797) NPE when we use decimal array as
input of UDAF
[ https://issues.apache.org/jira/browse/FLINK-19797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zou updated FLINK-19797:
------------------------
Description:
Flink throws NPE when we use decimal array as input of UDAF.
Here is a simple example:
{code:java}
select percentile(num, array[0.10, 0.50, 0.99]) from source
{code}
And the exception is:
{code:java}
Caused by: java.lang.NullPointerException: null
at org.apache.flink.table.data.util.DataFormatConverters$BigDecimalConverter.toExternalImpl(DataFormatConverters.java:680) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters$BigDecimalConverter.toExternalImpl(DataFormatConverters.java:661) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters.arrayDataToJavaArray(DataFormatConverters.java:1195) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters.access$200(DataFormatConverters.java:104) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters$ObjectArrayConverter.toExternalImpl(DataFormatConverters.java:1148) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters$ObjectArrayConverter.toExternalImpl(DataFormatConverters.java:1095) ~[classes/:na]
at org.apache.flink.table.data.util.DataFormatConverters$DataFormatConverter.toExternal(DataFormatConverters.java:383) ~[classes/:na]
at NoGroupingAggregateWithoutKeys$25.processElement(Unknown Source) ~[na:na]
at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:161) ~[classes/:na]
at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.processElement(StreamTaskNetworkInput.java:183) ~[classes/:na]
at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.emitNext(StreamTaskNetworkInput.java:158) ~[classes/:na]
at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:67) ~[classes/:na]
at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:351) ~[classes/:na]
at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxStep(MailboxProcessor.java:191) ~[classes/:na]
at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:181) ~[classes/:na]
at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:565) ~[classes/:na]
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:536) ~[classes/:na]
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721) ~[classes/:na]
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546) ~[classes/:na]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_251]
{code}
was:
Flink throws NPE when we use decimal array as input of UDAF.
Here is a simple example:
{code:java}
select percentile(num, array[0.10, 0.50, 0.99]) from source
{code}
> NPE when we use decimal array as input of UDAF
> ----------------------------------------------
>
> Key: FLINK-19797
> URL: https://issues.apache.org/jira/browse/FLINK-19797
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Runtime
> Reporter: Zou
> Priority: Major
>
> Flink throws NPE when we use decimal array as input of UDAF.
> Here is a simple example:
> {code:java}
> select percentile(num, array[0.10, 0.50, 0.99]) from source
> {code}
> And the exception is:
> {code:java}
> Caused by: java.lang.NullPointerException: null
> at org.apache.flink.table.data.util.DataFormatConverters$BigDecimalConverter.toExternalImpl(DataFormatConverters.java:680) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters$BigDecimalConverter.toExternalImpl(DataFormatConverters.java:661) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters.arrayDataToJavaArray(DataFormatConverters.java:1195) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters.access$200(DataFormatConverters.java:104) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters$ObjectArrayConverter.toExternalImpl(DataFormatConverters.java:1148) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters$ObjectArrayConverter.toExternalImpl(DataFormatConverters.java:1095) ~[classes/:na]
> at org.apache.flink.table.data.util.DataFormatConverters$DataFormatConverter.toExternal(DataFormatConverters.java:383) ~[classes/:na]
> at NoGroupingAggregateWithoutKeys$25.processElement(Unknown Source) ~[na:na]
> at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:161) ~[classes/:na]
> at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.processElement(StreamTaskNetworkInput.java:183) ~[classes/:na]
> at org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.emitNext(StreamTaskNetworkInput.java:158) ~[classes/:na]
> at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:67) ~[classes/:na]
> at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:351) ~[classes/:na]
> at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxStep(MailboxProcessor.java:191) ~[classes/:na]
> at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:181) ~[classes/:na]
> at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:565) ~[classes/:na]
> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:536) ~[classes/:na]
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721) ~[classes/:na]
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546) ~[classes/:na]
> at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_251]
> {code}
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