Re: [jira] Updated: (DERBY-318) SYS.SYSCOLUMN problem with "GENERATED BY DEFAULT" column w/ Network Server

[Satheesh Bandaram]

This patch is submitted. Please resolve and close the bug. I think Army (who submitted the bug) already has confirmed it is indeed fixed by your patch. Satheesh Tomohito Nakayama (JIRA) wrote: [ http://issues.apache.org/jira/browse/DERBY-318?page=all ] Tomohito Nakayama updated DERBY-318: ------------------------------------ Attachment: DERBY-318.patch Modified: 1: SYSCOLUMNS.COLUMNDEFAULT have "GENERATED_BY_DEFAULT", if the SYSCOLUMNS record stands for default autoinc column. 2: Test for 1: was added to lang/syscat.sql. 3: lang/syscat.sql became to executed in derbynetmats.runall. This results addition of syscat.sql to both of derbynet and derbynetclient. Testing: Executed derbyall and found three error. They seems to be same error as next. http://www.multinet.no/~solberg/public/Apache/Derby/testlog/SunOS-5.10_i86pc-i386/179247-derbynetclientmats_diff.txt http://www.multinet.no/~solberg/public/Apache/Derby/testlog/Linux-2.4.20-31.9_i686-i686/179247-storeall_diff.txt Test result will be uploaded next to this patch. SYS.SYSCOLUMN problem with "GENERATED BY DEFAULT" column w/ Network Server -------------------------------------------------------------------------- Key: DERBY-318 URL: http://issues.apache.org/jira/browse/DERBY-318 Project: Derby Type: Bug Components: Network Server Versions: 10.1.0.0 Environment: Derby in Network Server mode with either JCC or Derby Net Client. Reporter: A B Attachments: DERBY-318.patch, derbyall_diff.txt When connected to the Derby Network Server, if one has a table with a column defined as "GENERATED BY DEFAULT" and then one tries to select the "COLUMNDEFAULT" field from SYS.SYSCOLUMNS, the result is an NPE in the server code that leads to connection deallocation. I don't know if this is a problem with the "GENERATED BY DEFAULT" feature or if it's a problem with Network Server--more investigation is required. To reproduce, use ij to connect to a database using Network Server, and then: ij> create table t1 (i int generated by default as identity); 0 rows inserted/updated/deleted ij> select columndefault from sys.syscolumns; COLUMNDEFAULT ---------------------------------------------------------------------------------------------------- ---------------------------- null java.lang.NullPointerException at org.apache.derby.impl.drda.DRDAConnThread.writeFdocaVal(DRDAConnThread.java:6550) at org.apache.derby.impl.drda.DRDAConnThread.writeFDODTA(DRDAConnThread.java:5973) at org.apache.derby.impl.drda.DRDAConnThread.writeQRYDTA(DRDAConnThread.java:5796) at org.apache.derby.impl.drda.DRDAConnThread.processCommands(DRDAConnThread.java:595) at org.apache.derby.impl.drda.DRDAConnThread.run(DRDAConnThread.java:226) agentThread[DRDAConnThread_2,5,main] ERROR 58009: Execution failed due to a distribution protocol error that caused deallocation of the conversation. A DRDA Data Stream Syntax Error was detected. Reason: 0x3