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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6923) Passing a ClientClob or ClientBlob from another connection to an INSERT statement results in 'null' being written.
Date Sat, 25 Feb 2017 17:07:44 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15884310#comment-15884310
] 

Bryan Pendleton commented on DERBY-6923:
----------------------------------------

This background discussion from 10 years ago is probably worth reviewing?

http://derby-dev.db.apache.narkive.com/cgD3FRUt/lifetime-of-blob-clob-objects-compatibility-issues


> Passing a ClientClob or ClientBlob from another connection to an INSERT statement results
in 'null' being written.
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-6923
>                 URL: https://issues.apache.org/jira/browse/DERBY-6923
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Client, Network Server
>    Affects Versions: 10.13.1.1
>         Environment: Java 8
> MacOS
> Windows
>            Reporter: Gordon Innes
>            Priority: Critical
>         Attachments: DerbyEmbeddedOnly.java, DerbyNetworkOnly.java, DerbyNetworkRead.java,
DerbyNetworkWrite.java
>
>
> When assigning a Blob or Clob from a ResultSet to a PreparedStatement parameter on a
second connection, null is written to the column instead.
> Attached the same example using Embedded->Embedded, Embedded->Network, Network->Embedded
and Network->Network.
> Only the Network->Network example exhibits the fault.
> Originally discovered in HA-JDBC's sync code with 2 derby instances on Windows. Example
were tested using MacOS. Both were running on Oracle Java 8 VMs.



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