Order by on aggregate always does a sort even if the sort is not needed.
Key: DERBY-3276
URL: https://issues.apache.org/jira/browse/DERBY-3276
Project: Derby
Issue
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Manish Khettry commented on DERBY-3231:
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DERBY-3236.
Mike, I'll take a look at DERBY-3257.
Sorting on
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mkhettry edited comment on DERBY-3231 at 12/14/07 11:18 AM:
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DERBY-3276
Mike,
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Manish Khettry commented on DERBY-3231:
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Well, I thought it was better to fix the wrong results and look at
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Manish Khettry commented on DERBY-3231:
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I did not look into the phantom column behavior; just getting rid of
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Manish Khettry commented on DERBY-3231:
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I ran the junit lang suite.
1. Prior to 681, the query would get
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Manish Khettry updated DERBY-3231:
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Attachment: order_by_bug.diff.txt
Sorting on COUNT with OR and GROUP BY delivers wrong
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Manish Khettry updated DERBY-3231:
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Derby Info: [Patch Available, Existing Application Impact, Regression]
(was: [Regression,
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Manish Khettry commented on DERBY-3231:
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The problem was missing methods isConstant and isConstantExpression
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Manish Khettry reassigned DERBY-2457:
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Assignee: (was: Manish Khettry)
Don't have the time to look into this right now.
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Manish Khettry reassigned DERBY-3231:
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Assignee: Manish Khettry
Sorting on COUNT with OR and GROUP BY delivers wrong results.
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Manish Khettry commented on DERBY-3231:
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Interestingly if you leave out the where clause, the query works just
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mkhettry edited comment on DERBY-3231 at 12/4/07 10:58 PM:
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A.B, did this query work
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Manish Khettry commented on DERBY-3231:
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A.B, did this query work before svn revision 516454?
Sorting on
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Manish Khettry commented on DERBY-3050:
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A few thoughts on the test case.
1. The testcase creates and drops
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Manish Khettry commented on DERBY-2911:
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One thought on the ConcurrentCache class. Since this is a Java 5
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Manish Khettry commented on DERBY-3024:
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That is very interesting. A couple of thoughts on this.
First, the
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Manish Khettry commented on DERBY-3002:
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If I read the diff correctly, you're sorting the same data multiple
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Manish Khettry updated DERBY-2689:
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Attachment: (was: deadlock3.patch.txt)
Deadlock with GenericPreparedStatement
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Manish Khettry updated DERBY-2689:
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Attachment: deadlock3.patch.txt
another one with license granted. I've already signed an
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Manish Khettry updated DERBY-2689:
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Attachment: deadlock3.patch.txt
Deadlock with GenericPreparedStatement
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Manish Khettry commented on DERBY-2689:
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fyi-- I attached another patch.
Deadlock with
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Manish Khettry commented on DERBY-2689:
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Thanks for looking at the patch.
As far as 2 goes-- if we set
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Manish Khettry commented on DERBY-2689:
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re: walking the acts list, Dan in DERBY-418, suggested that we
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Manish Khettry updated DERBY-2689:
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Attachment: deadlock.patch.txt
I have moved the logic that closes unused activations. Earlier
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Manish Khettry updated DERBY-2689:
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Derby Info: [Patch Available]
Deadlock with GenericPreparedStatement
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Manish Khettry updated DERBY-2794:
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Attachment: trim_doc
A first cut at the ansi trim functionality.
Document ansi trim
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Manish Khettry updated DERBY-2794:
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Derby Info: [Patch Available]
Document ansi trim functionality
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Manish Khettry commented on DERBY-2689:
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Thought I'd update the bug with what I'm trying right now--I think
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Manish Khettry commented on DERBY-1623:
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Sorry, I guess not all issues were addressed.
re: space vs tabs--
Document ansi trim functionality
Key: DERBY-2794
URL: https://issues.apache.org/jira/browse/DERBY-2794
Project: Derby
Issue Type: Sub-task
Components: Documentation
Reporter: Manish
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Manish Khettry reassigned DERBY-2689:
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Assignee: Manish Khettry
Deadlock with GenericPreparedStatement
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Manish Khettry commented on DERBY-2689:
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Since nobody has claimed this as yet and its critical, I can take a
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Manish Khettry reassigned DERBY-2794:
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Assignee: Manish Khettry
Document ansi trim functionality
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Manish Khettry updated DERBY-1623:
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Attachment: 1623_take2.patch.txt
Followup patch. Addresses all the issues raised by A. B. Ran
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Manish Khettry commented on DERBY-1623:
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Thanks for reviewing the code. All your points are valid and 1 is a
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Manish Khettry updated DERBY-1623:
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Attachment: 1623.patch.txt
Add ANSI TRIM implementation
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Manish Khettry updated DERBY-1623:
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Derby Info: [Patch Available]
I apologize for not being able to wrap this up sooner-- work has
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Manish Khettry commented on DERBY-1623:
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The bugfix is in the attachment, 1623.patch.txt
Add ANSI TRIM
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Manish Khettry commented on DERBY-1623:
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Thanks Andrew-- if you have those queries saved up, it would be a
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Manish Khettry updated DERBY-1623:
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Attachment: sqlgrammar.jj.diff
I think this grammar would work. What do you think Andrew?
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Manish Khettry commented on DERBY-1623:
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Andrew,
I am going by snippets of the spec posted in this bug. I did
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Manish Khettry commented on DERBY-1623:
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Andrew
Thanks for taking the time to take a look at this. I took
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Manish Khettry updated DERBY-1623:
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Attachment: AnsiTrimTest.java
Unit test for parsing trim expressions.
Add ANSI TRIM
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Manish Khettry commented on DERBY-1623:
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I have spent several days but I cannot seem to express the grammar
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Manish Khettry commented on DERBY-1623:
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Yes, I agree the better thing to do is to implement the sql standard
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Manish Khettry resolved DERBY-681.
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Resolution: Fixed
This commit by Army, http://svn.apache.org/viewvc?view=revrev=518687,
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Manish Khettry commented on DERBY-1623:
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I'm thinking of adding an optional argument to the existing LTRIM and
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Manish Khettry commented on DERBY-1623:
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Its pretty much in the description of this bug. I found this as well
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Manish Khettry closed DERBY-2442.
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Remove code made redundant by DERBY-681
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Manish Khettry reassigned DERBY-2457:
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Assignee: Manish Khettry
Use of column aliases in group by / having clauses can cause
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Manish Khettry reassigned DERBY-1623:
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Assignee: Manish Khettry
Consider ANSI TRIM implementation
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Manish Khettry updated DERBY-2442:
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Attachment: post681.refactor2.txt
ValueNod#clause RIP.
I ran derbylang, junit-all.
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Manish Khettry commented on DERBY-2442:
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This is the last patch for this bug.
Remove code made redundant
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Manish Khettry updated DERBY-2442:
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Derby Info: [Patch Available]
Remove code made redundant by DERBY-681
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Manish Khettry reopened DERBY-2442:
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Sorry, to reopen this but there is atleast another set of changes that are
coming up. Thanks
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Manish Khettry updated DERBY-2442:
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Attachment: post681.refactor1.txt
Remove code made redundant by DERBY-681
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Manish Khettry commented on DERBY-2442:
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the second patch, performs cleanup on FromSubquery and FromList--
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Manish Khettry commented on DERBY-2463:
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These questions may be silly but here goes
1. Is it possible that
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Manish Khettry commented on DERBY-2442:
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I'm sorry-- I had two different sets of changes in my environment. If
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Manish Khettry updated DERBY-2442:
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Derby Info: [Patch Available]
Remove code made redundant by DERBY-681
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Manish Khettry updated DERBY-681:
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Attachment: followup.patch.txt
query with a having clause but without a group by has a generated
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Manish Khettry updated DERBY-2442:
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Attachment: post681.refactor.txt
In SelectNode, the instance variables
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Manish Khettry updated DERBY-2442:
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Derby Info: [Patch Available]
Remove code made redundant by DERBY-681
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Manish Khettry commented on DERBY-681:
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OK. Do you think it makes sense to mark this bug as resolved and another
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Manish Khettry commented on DERBY-681:
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hmmm, thanks for catching all of these. I should have thought about them
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Manish Khettry commented on DERBY-2416:
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A couple of thoughts.
1. The name can simply be
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Manish Khettry commented on DERBY-2416:
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I am not sure what you mean by penalize SQLChar? If you mean runtime
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Manish Khettry reassigned DERBY-2442:
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Assignee: Manish Khettry
Remove code made redundant by DERBY-681
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Manish Khettry updated DERBY-681:
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Attachment: 681.patch3.txt
removed runtest, runsuite. fixed views.
Eliminate the parser's
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Manish Khettry updated DERBY-681:
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Attachment: 681.patch2.txt
Again, thanks for very detailed and constructive review and for
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Manish Khettry commented on DERBY-681:
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Just a quick note to address two issues raised by Army.
DERBY-1624: It
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Manish Khettry commented on DERBY-681:
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Thanks for reviewing the patch. It will take me sometime to make the
[ http://issues.apache.org/jira/browse/DERBY-681?page=all ]
Manish Khettry updated DERBY-681:
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Attachment: 681.patch.txt
This patch removes the wrap group by's in a subselect rewrite in the parser.
It preserves the having clause through bind and
[ http://issues.apache.org/jira/browse/DERBY-681?page=all ]
Manish Khettry updated DERBY-681:
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Attachment: notes.txt
Notes on this patch.
Eliminate the parser's rewriting of the abstract syntax tree for queries with
GROUP BY and/or HAVING clauses
[ http://issues.apache.org/jira/browse/DERBY-681?page=all ]
Manish Khettry updated DERBY-681:
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Derby Info: [Patch Available]
Eliminate the parser's rewriting of the abstract syntax tree for queries with
GROUP BY and/or HAVING clauses
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http://issues.apache.org/jira/browse/DERBY-64?page=comments#action_12457097 ]
Manish Khettry commented on DERBY-64:
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I spent some time looking at the patch and it looks like a good first stab at
the compile and bind phase. The execution
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Manish Khettry commented on DERBY-681:
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Thanks Andrew. I hope that I can eliminate the group/having query rewrite and
this should fix DERBY-1624.
On the
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Manish Khettry commented on DERBY-2016:
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The visit method is used to traverse the parse tree and in this case, replace
aggregates with ColumnReferences. See
[ http://issues.apache.org/jira/browse/DERBY-681?page=all ]
Manish Khettry reassigned DERBY-681:
Assignee: Manish Khettry
Eliminate the parser's rewriting of the abstract syntax tree for queries with
GROUP BY and/or HAVING clauses
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Manish Khettry commented on DERBY-2014:
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The change to ConstantNode is fine. Thanks for finding and fixing this. On
adding tests for this bug: Would it be
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Manish Khettry commented on DERBY-883:
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I think the issue can be closed.
I'm not sure if we want to allow the use of grouping expressions in the having
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch7.txt
Synced to rev 434408. Use the new JUnit test case/test setup classes. Passed
derbylang.
Enhance GROUP BY clause to support
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Manish Khettry commented on DERBY-883:
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I'm not sure what you mean by function changes-- one new function has been
added to BaseJDBCTestCase (although it was
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Manish Khettry commented on DERBY-883:
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no functional changes, so if you've fixed up patch 6 to work, then go with it.
Enhance GROUP BY clause to support
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Manish Khettry commented on DERBY-1624:
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Here is a description of the problem.
Derby rewrite queries involving group by's by adding an outer select and
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Manish Khettry commented on DERBY-1624:
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This has to do with the way Derby rewrites querys with a groupby. What I find
odd is that the query works without
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch6.txt
svn update to revision 430199. Hopefully this patch will apply cleanly.
Enhance GROUP BY clause to support expressions instead
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch6.txt
Minor correction to previous patch.
Enhance GROUP BY clause to support expressions instead of just column
references.
[
http://issues.apache.org/jira/browse/DERBY-883?page=comments#action_12427381 ]
Manish Khettry commented on DERBY-883:
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Dan could you try the last patch file attached with this bug?
Enhance GROUP BY clause to support expressions instead
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch5.txt
This patch addresses issues raised by Army and Yip.
1. Flag error for aggregate in group by list. Changes to sqlgrammar.jj,
[
http://issues.apache.org/jira/browse/DERBY-1574?page=comments#action_12423885 ]
Manish Khettry commented on DERBY-1574:
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To me it seems CoalesceFunctionNode should provide a preprocess method but I'm
not an authority either! While
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch4.txt
I found a problem in one of my changes. Also got rid of a lot of white space
only diffs.
Enhance GROUP BY clause to support
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch3.txt
incorporate feedback from code review.
Enhance GROUP BY clause to support expressions instead of just column
references.
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Attachment: 883.patch.txt
Enhance GROUP BY clause to support expressions instead of just column
references.
[ http://issues.apache.org/jira/browse/DERBY-883?page=all ]
Manish Khettry updated DERBY-883:
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Derby Info: [Patch Available]
Functionally, this patch supports expressions in the group by list. An
expression
in the group by list can also be used in the
[ http://issues.apache.org/jira/browse/DERBY-578?page=all ]
Manish Khettry updated DERBY-578:
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Attachment: 578.diff.new.txt
Try this one-- it is a complete patch and it should work.
Grouped select from temporary table raises null pointer exception in
[ http://issues.apache.org/jira/browse/DERBY-578?page=all ]
Manish Khettry updated DERBY-578:
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Attachment: predicatePushdown.out.patch
Looks like the join order changed between when I generated the patch and now.
Try this version of predicatePushdown.
[ http://issues.apache.org/jira/browse/DERBY-578?page=all ]
Manish Khettry resolved DERBY-578:
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Resolution: Fixed
Derby Info: [Patch Available]
Grouped select from temporary table raises null pointer exception in byte
code generator
[
http://issues.apache.org/jira/browse/DERBY-883?page=comments#action_12402467 ]
Manish Khettry commented on DERBY-883:
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I have a few questions on this, largely functional.
1. In terms of syntax, do we allow expressions in the group by list or
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