error xj001 Alplaus New York

At Computer Repair & Technologies, our staff of professional technicians are here to insure that any problem or complication our customers may have with their computer or network is dealt with quickly and efficiently. We use our rigorous proprietary process of testing and troubleshooting which ensures quality repairs done correctly the first time.

computer/laptop repair, virus/spyware removal, data recovery, laptop/mobile device screen repair, computer sales

Address 1550 Altamont Ave Ste 2, Schenectady, NY 12303
Phone (518) 356-3800
Website Link http://pcrepairtech.biz
Hours

error xj001 Alplaus, New York

So when we revert from the probe predicate back to the original in-list-op, the problem is that the original in-list-op reflects the unflattened query, and since we've decided to flatten the asked 4 years ago viewed 452 times active 4 years ago Related 2Derby DB Insert Error SQL state 21000-1Suggest me Java Embedded Database for java desktop application0Derby Trigger on UPDATE: how Show Stan Bradbury added a comment - 24/Jan/08 23:07 Catching up on Closing my reported issues. I'm also attaching a second file, d3253_v3.patch, which is a slight variation of the _v1 patch.

Hide Permalink Knut Anders Hatlen added a comment - 12/Sep/14 11:35 Got the NPE too now: ij> connect 'jdbc:derby:memory:db;create=true'; ij> create table t1(x int primary key); 0 rows inserted/updated/deleted ij> select Even though it fails with a ClassCastException instead of a NullPointerException, I would suspect that the root cause is the same. I ran the svn merge command to port this back to 10.3 and it merged with no errors: svn merge -r 605615:605616 https://svn.apache.org/repos/asf/db/derby/code/trunk I'll kick off the 10.3 regression tests today. Does that sound correct to you?

There are instructions in the WebSphere Application Server Information Center for dropping and creating the Scheduler database tables. Show Bryan Pendleton added a comment - 14/Dec/07 17:07 The flow of execution makes more sense now, thanks for filling it in more completely. Otherwise the predicate would be treated as a qualifier for store, which could lead to incorrect results. */ .... That said, it seemed like doing a single "setLeftOperand()" call at generation time was the preferable mechanism.

or with debug jars: ij> select row_number() over (), (select x from t1 where x=1) from t1; ERROR XJ001: Java exception: 'ASSERT FAILED sourceResultSetNumber expected to be >= 0 for virtual So if we have the operand in its correct form, it seems reasonable to just push it to the right place for code generation... I'm just trying to avoid having code where BinaryOperatorNode corrects for a problem that is occuring in a child node; I always worry when I see class A having code that That means the probe predicate and the InListOperatorNode have now different left operands. - Optimization completes, we decide that the probe predicate is not useful. - During code generation, we see

If you agree to our use of cookies, please close this message and continue to use this site. Should I add any code to stop this happening in the future? What's the difference between continuous and piecewise continuous functions? Is this in some way saying that instead of "do the work once and apply the result to the correct place", we'd be opting for "do the work twice and then

Until we decide, I'll retain enough information that I can be either operator." Given that perspective, to me it seems valid that the code has to be routinely passing method calls Is this in some way saying that instead of "do the work once and apply the result to the correct place", we'd be opting for "do the work twice and then The NPE seems to happen because BinaryRelationalOperatorNode.getExpressionOperand() returns null, which only happens if neither the left operand nor the right operand of the node is a ColumnReference. I am of course open to change if you think this there is a better approach?

readPrepareDescribeOutput(Unknown Source) at org.apache.derby.client.net.StatementReply. Upon completion of the preprocess phase for InListOperatorNode, the new probe predicate and the original InListOperatorNode both have the same left operand (OP_0) - Preprocess the subquery node, which involves flattening So both failures happen because the code expects an operand of BinaryRelationalOperatorNode to be a ColumnReference, whereas it isn't. As part of flattening the probe predicate 's left operand ( not the InListOperatorNode's left operand) changes to OP_1; this is because it (the probe predicate) now represents the IN operation

Thank you again for taking the time to explore the various alternatives in detail, and for explaining how the processing works, it has been quite illuminating and I've learned a lot That brings us to the remapColumnReferencesToExpressions() method of BinaryOperatorNode, where we have: public ValueNode remapColumnReferencesToExpressions() throws StandardException { leftOperand = leftOperand.remapColumnReferencesToExpressions(); rightOperand = rightOperand.remapColumnReferencesToExpressions(); return this; } Notice how the leftOperand I tried the obvious places where this had to be done and the error reported for this issue did indeed disappear. Here's what I would try in order to make the database bootable again: 1.

Join us to help others who have the same bug. I ran the svn merge command to port this back to 10.3 and it merged with no errors: svn merge -r 605615:605616 https://svn.apache.org/repos/asf/db/derby/code/trunk I'll kick off the 10.3 regression tests today. Show A B added a comment - 14/Dec/07 04:01 A surprisingly simple repro of this NPE can be created as follows: create table t1 (i int, vc varchar(10)); insert into t1 At the moment I am simply running my java application on Dukascopy's Forex Platform I do not know where or how to implement what you require Sorry :( Bob M Bob

Project going on longer than expected - how to bring it up to client? Join them; it only takes a minute: Sign up ERROR XJ001: Java exception: ': java.lang.StackOverflowError' up vote 0 down vote favorite I am using Derby DB and I am executing simple Show Bryan Pendleton added a comment - 14/Dec/07 15:13 Hi Army, thanks for taking the time to explain this in detail. Then I think when we perform the flattening, the probe predicate should ensure that it not only re-maps its own column references, but also calls the in-list that it's stashed away,

I feel like _v3 is the best of the three approaches. DERBY-3097 and related discussion. I think that the manipulation of the leftOperand field is well encapsulated with this approach. Share This Page Legend Correct Answers - 10 points Home Reading Searching Subscribe Sponsors Statistics Posting Contact Spam Lists Links About Hosting Filtering Features Download Marketing Archives FAQ Blog From:

Did derby.log on the server contain any clues, such as the original NPE? Marking the bug as a regression. I would first have checked the permissions of the tmp directory and the database directory to see if there's something there that prevents the application from accessing the directory. I'm just trying to avoid having code where BinaryOperatorNode corrects for a problem that is occuring in a child node; I always worry when I see class A having code that

I feel like _v3 is the best of the three approaches. Show A B added a comment - 05/Dec/07 16:38 Based on a quick test it looks like this is a regression caused by DERBY-47 . Show Dyre Tjeldvoll added a comment - 17/Jan/08 16:37 Stan, do you think we can close this now? Free forum by Nabble Edit this page My VMware | VMware.comSearch ActivityBrowseAll ContentBlog PostsDiscussionsDocumentsPollsBookmarksPopular tagsCommunitiesGroupsPeopleLog inRegisterHomeVMTN Forums Mobile AppsBlogsTwitterFacebookGoogle+LinkedInYouTubeGroupsPodcasts vSphere NSXVirtual SAN vCenterFusionWorkstationvExpertVMware {code} CloudCredSubmit a Link Home >

I tried a one-line fix to this code that seems to have resolved the issue: if (ilon != null) { ilon.setLeftOperand(this.leftOperand); // Added this line ilon.generateExpression(acb, mb); return; } (with appropriate