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Posted to issues@nifi.apache.org by "ZhangCheng (Jira)" <ji...@apache.org> on 2020/07/15 08:12:00 UTC
[jira] [Commented] (NIFI-6061) PutDatabaseRecord does not properly
handle BLOB/CLOB fields
[ https://issues.apache.org/jira/browse/NIFI-6061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17157981#comment-17157981 ]
ZhangCheng commented on NIFI-6061:
----------------------------------
For Oracle TIMESTAMP field, when PutDatabaseRecord tries to insert it via setObject(), it will throws exception ORA-01843:not a valid month.
I think this exception will be solved afte fixing this bug.
> PutDatabaseRecord does not properly handle BLOB/CLOB fields
> -----------------------------------------------------------
>
> Key: NIFI-6061
> URL: https://issues.apache.org/jira/browse/NIFI-6061
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Matt Burgess
> Priority: Major
>
> BLOB/CLOB fields in NiFi's Record API are returned from the record as Object[Byte], but when PutDatabaseRecord tries to insert Object[] via setObject(), the following error occurs:
> 2019-02-20 15:11:16,216 WARN [Timer-Driven Process Thread-10] o.a.n.p.standard.PutDatabaseRecord PutDatabaseRecord[id=0c84b9de-0169-1000-0164-3fbad7a17664] Failed to process StandardFlowFileRecord[uuid=d739f432-0871-41bb-a0c9-d6ceeac68a6d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1550690599998-1, container=default, section=1], offset=1728, length=251],offset=0,name=d739f432-0871-41bb-a0c9-d6ceeac68a6d,size=251] due to org.postgresql.util.PSQLException: Can't infer the SQL type to use for an instance of [Ljava.lang.Object;. Use setObject() with an explicit Types value to specify the type to use.:
> Somewhere in the value conversion/representation, PutDatabaseRecord would likely need to create a java.sql.Blob object and transfer the bytes into it. One issue I see is that the record field type has been converted to Array[Byte], so the information that the field is a BLOB is lost by that point. If this requires DB-specific code, we'd likely need to add a Database Adapter property and delegate out to the various DB adapters.
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