April 2011 - teiid-issues - Jboss List Archives

[JBoss JIRA] Created: (TEIID-1503) Exception during Optimization

by Ramesh Reddy (JIRA)

Exception during Optimization ------------------------------ Key: TEIID-1503 URL: https://issues.jboss.org/browse/TEIID-1503 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 7.4 Reporter: Ramesh Reddy Assignee: Steven Hawkins Fix For: 7.4 while running the BQT Query SELECT intkey FROM BQT1.SmallA AS A WHERE convert(shortvalue, integer) = (SELECT MAX(convert(shortvalue, integer)) FROM BQT1.SmallA AS B WHERE b.intnum = a.intnum) ORDER BY intkey I encountered java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.get(ArrayList.java:324) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.filterVirtualElements(RuleAssignOutputElements.java:358) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.assignOutputElements(RuleAssignOutputElements.java:168) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.assignOutputElements(RuleAssignOutputElements.java:217) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.assignOutputElements(RuleAssignOutputElements.java:217) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.assignOutputElements(RuleAssignOutputElements.java:163) at org.teiid.query.optimizer.relational.rules.RuleAssignOutputElements.execute(RuleAssignOutputElements.java:96) at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:462) at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:227) at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:169) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.planSemiJoin(RuleMergeCriteria.java:283) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.findCriteriaChains(RuleMergeCriteria.java:170) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.findCriteriaChains(RuleMergeCriteria.java:189) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.findCriteriaChains(RuleMergeCriteria.java:189) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.findCriteriaChains(RuleMergeCriteria.java:189) at org.teiid.query.optimizer.relational.rules.RuleMergeCriteria.execute(RuleMergeCriteria.java:146) at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:462) at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:227) at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:169) at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:429) at org.teiid.dqp.internal.process.Request.processRequest(Request.java:452) at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:376) at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:175) at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:49) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:188) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:116) at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:290) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1509) Change the default for value caching

by Steven Hawkins (JIRA)

Change the default for value caching ------------------------------------ Key: TEIID-1509 URL: https://issues.jboss.org/browse/TEIID-1509 Project: Teiid Issue Type: Quality Risk Components: Query Engine Affects Versions: 7.4 Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.4 There is a larger performance impact from having value caching enabled with large data sets (which is the more typical deployment scenario) than having value caching disabled and a larger memory footprint. So the value caching default should change to false. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1481) client url cleanups

by Steven Hawkins (JIRA)

client url cleanups ------------------- Key: TEIID-1481 URL: https://issues.jboss.org/browse/TEIID-1481 Project: Teiid Issue Type: Task Components: JDBC Driver Affects Versions: 7.4 Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.4 Designer is now leveraging the TeiidURL class for validation of server urls. The messages need internationalized and it would be better to through a checked exception (such as MalformedUrlException) rather than IllegalArgumentException. In addition there is a lot of redundancy with url handling in the Socket/EmbeddedProfile, JDBCURL, and TeiidDataSource. This should be consolidated as much as possible. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1510) RulePushAggregates should consider cost in addition to key information

by Steven Hawkins (JIRA)

RulePushAggregates should consider cost in addition to key information ---------------------------------------------------------------------- Key: TEIID-1510 URL: https://issues.jboss.org/browse/TEIID-1510 Project: Teiid Issue Type: Feature Request Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.4 RulePushAggregates currently only considers whether a key is in use in the grouping columns to not stage an aggregate. It should additionally use a cost check to see if the staged aggregate is cost effective. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1416) Admin console shows no information about sessions

by Boris Belovic (JIRA)

Admin console shows no information about sessions ------------------------------------------------- Key: TEIID-1416 URL: https://issues.jboss.org/browse/TEIID-1416 Project: Teiid Issue Type: Bug Components: AdminApi Affects Versions: 7.1 Reporter: Boris Belovic Assignee: Steven Hawkins Admin console shows no session information. The results table is empty even if the session is active (= connections to VDB weren't closed). -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1479) Teiid Documentation does not include MS SQL Server as an available translator in section 10.2.2. JDBC Translator of the Reference Guide

by Van Halbert (JIRA)

Teiid Documentation does not include MS SQL Server as an available translator in section 10.2.2. JDBC Translator of the Reference Guide --------------------------------------------------------------------------------------------------------------------------------------- Key: TEIID-1479 URL: https://issues.jboss.org/browse/TEIID-1479 Project: Teiid Issue Type: Bug Components: Documentation Affects Versions: 7.4 Reporter: Van Halbert Assignee: Steven Hawkins Teiid Documentation does not include MS SQL Server as an available translator in section "10.2.2. JDBC Translato" of the Reference Guide. I checked versions 7.3 and 7.1. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1508) Dependent join planning problem

by Steven Hawkins (JIRA)

Dependent join planning problem ------------------------------- Key: TEIID-1508 URL: https://issues.jboss.org/browse/TEIID-1508 Project: Teiid Issue Type: Quality Risk Components: Query Engine Affects Versions: 7.4 Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.4 Without a dependent join hint a composite cross source dependent join will not plan correctly unless the independent side can be pushed as a single query. The root of the issue is that join planning involving more than 1 independent table does not consider the effect of potential dependent joins early enough. The workaround is to use a dependent join hint or set the cardinality of the independent tables small enough to trigger the proper dependent join. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1458) Wrong count(*) result when joining data from two models

by Claudio Venturini (JIRA)

Wrong count(*) result when joining data from two models ------------------------------------------------------- Key: TEIID-1458 URL: https://issues.jboss.org/browse/TEIID-1458 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 7.3, 7.2 Environment: Teiid 7.3 deployed on Jboss AS 5.1.0 GA running on Ubuntu Server 10.04 LTS, MySQL 5.1.51 running on the same maching as JBoss, SQL Server 2000 Standard SP4 running on Windows Server 2003 Reporter: Claudio Venturini Assignee: Steven Hawkins count(\*) gets a wrong result when is performed in a query which joins two tables coming from two different models. The first (named "sqlsrv") is a source model for a table stored in SQL Server 2000. The second (named "mysql") is a source model for a table stored in MySQl 5.1. The query performs an inner join on the column "product_id", which is shared by the two tables. All records match correctly, so there should be no difference in using an inner join instead of other join types. The query is the following: {noformat} SELECT invoice, invoice_date, code, sum(quantity) AS s, avg(price) AS av, count(*) AS dim FROM sqlsrv.test2.dbo.sales SL INNER JOIN mysql.test.product_code PC ON SL.product_id = PC.product_id GROUP BY invoice_date, invoice, code ORDER BY invoice_date ASC, invoice ASC, code ASC {noformat} The result of count(\*) is 1 for all records, while for some of them it should be 2, as there are duplicate records in the sales table, which are grouped by the GROUP BY clause. Note that the problem exists only with the inner join. Left, right and outer joins work well, even if the set of records that they produce is the same as that produced by the inner join. I noticed the problem in Teiid 7.2. Tonight I upgraded to 7.3, but the problem is still there. If the data are all in the same DB, the query works as expected. It is not significant in which of the two DB each table resides. I think it is neither a problem of the SQL Server connector, nor of the MySQL connector. The data are the following: *product_code*: ||code||category||product_id|| |1|1|125| |2|1|127| |3|1|123| |4|1|121| |5|1|126| |6|1|124| |7|1|122| *sales*: ||invoice||invoice_date||product_id||quantity||price|| |009831|2009-08-15 00:00:00|125|350|1.070261| |009831|2009-08-15 00:00:00|124|960|1.070261| |009843|2009-08-15 00:00:00|121|648|1.515264| |009843|2009-08-15 00:00:00|126|145|2.763902| |009843|2009-08-15 00:00:00|126|25|2.407148| |009855|2009-08-15 00:00:00|122|768|1.122835| |009855|2009-08-15 00:00:00|123|540|1.158511| |009855|2009-08-15 00:00:00|125|480|1.070261| |009857|2009-08-15 00:00:00|122|440|1.498365| |009857|2009-08-15 00:00:00|126|115|2.585525| |009866|2009-08-15 00:00:00|122|736|1.498365| |009866|2009-08-15 00:00:00|123|558|1.391339| |009866|2009-08-15 00:00:00|125|378|1.336887| |009866|2009-08-15 00:00:00|127|510|1.605391| |009866|2009-08-15 00:00:00|126|435|2.585525| |009847|2009-08-15 00:00:00|126|55|2.763902| |009847|2009-08-15 00:00:00|126|5|2.407148| |009847|2009-08-15 00:00:00|121|240|1.872018| The result of the above query is: ||invoice||invoice_date||code||s||av||dim|| |009831|2009-08-15 00:00:00|1|350.0|1.070261|1| |009831|2009-08-15 00:00:00|6|960.0|1.070261|1| |009843|2009-08-15 00:00:00|4|648.0|1.515264|1| |009843|2009-08-15 00:00:00|5|170.0|2.585525|1| |009847|2009-08-15 00:00:00|4|240.0|1.872018|1| |009847|2009-08-15 00:00:00|5|60.0|2.585525|1| |009855|2009-08-15 00:00:00|1|480.0|1.070261|1| |009855|2009-08-15 00:00:00|3|540.0|1.158511|1| |009855|2009-08-15 00:00:00|7|768.0|1.122835|1| |009857|2009-08-15 00:00:00|5|115.0|2.585525|1| |009857|2009-08-15 00:00:00|7|440.0|1.498365|1| |009866|2009-08-15 00:00:00|1|378.0|1.336887|1| |009866|2009-08-15 00:00:00|2|510.0|1.605391|1| |009866|2009-08-15 00:00:00|3|558.0|1.391339|1| |009866|2009-08-15 00:00:00|5|435.0|2.585525|1| |009866|2009-08-15 00:00:00|7|736.0|1.498365|1| As you can see, count(\*) (the "dim" column) always returns 1, even if it should return 2 for the product with id 126 in invoices 009843 and 009847. If needed, I can provide you the two source models, and a dump of the two DBs. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1502) ODBC (and admin) scalability limited by maxWorker cap

by Steven Hawkins (JIRA)

ODBC (and admin) scalability limited by maxWorker cap ----------------------------------------------------- Key: TEIID-1502 URL: https://issues.jboss.org/browse/TEIID-1502 Project: Teiid Issue Type: Bug Components: Server Affects Versions: 7.1 Reporter: Steven Hawkins Assignee: Steven Hawkins Priority: Critical Fix For: 7.4 We are capping the max workers in an attempt to prevent excessive thread use, but this prevents the blocking operations of ODBC/admin to scale well. The long term fix is to make ODBC/admin operations non-blocking wrt the IO. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (TEIID-1482) Prevent unnecessary rebuffering of sorted results

by Steven Hawkins (JIRA)

Prevent unnecessary rebuffering of sorted results ------------------------------------------------- Key: TEIID-1482 URL: https://issues.jboss.org/browse/TEIID-1482 Project: Teiid Issue Type: Enhancement Components: Query Engine Affects Versions: 7.4 Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.4 A plan that has a final (non-unrelated sort) sort will have the results rebuffered by the RequestWorkItem even though they are should already be available in a buffer. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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teiid-issues April 2011