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Type: Bug
Resolution: Done
Priority: Major
Fix Version/s: 15.0.1, 14.0.2, 16.0
Affects Version/s: 14.0
Component/s: Query Engine
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Steps to Reproduce:
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1. In PostgreSQL create the test_a and test_b tables using the following scripts:

CREATE TABLE public.table_a ( shop_key character varying(4000), channel_key character varying(4000) ); INSERT INTO public.table_a( shop_key, channel_key) VALUES ('shop_key', 'channel_key'); CREATE TABLE public.table_b ( shop_key character varying(4000), dummy character varying(4000), medium character varying(4000) ); INSERT INTO public.table_b( shop_key, dummy, medium) VALUES ('shop_key', 'dummy', 'channel');

2. Add PostgreSQL database configuration in standalone-teiid.xml:

<datasource jndi-name="java:/test_dwh_pg" pool-name="test_dwh_pg" enabled="true" use-java-context="true"> <connection-url>jdbc:postgresql://localhost:5432/test_dwh?charSet=utf8</connection-url> <driver-class>org.postgresql.Driver</driver-class> <driver>org.postgresql</driver> <pool> <min-pool-size>2</min-pool-size> <max-pool-size>70</max-pool-size> <prefill>false</prefill> <use-strict-min>false</use-strict-min> <flush-strategy>FailingConnectionOnly</flush-strategy> </pool> <security> <user-name>xxxxx</user-name> <password>xxxxx</password> </security> <validation> <check-valid-connection-sql>select 0</check-valid-connection-sql> </validation> <timeout> <blocking-timeout-millis>120000</blocking-timeout-millis> <idle-timeout-minutes>5</idle-timeout-minutes> </timeout> </datasource>

3. Add in test-vdb.xml java:/test_dwh_pg configured in the previous step as a data source:

<model name="test_dwh_pg"> <property name="importer.useFullSchemaName" value="false"/> <property name="importer.tableTypes" value="TABLE,VIEW"/> <property name="importer.importKeys" value="false"/> <source name="test_dwh_pg" translator-name="myPg" connection-jndi-name="java:/test_dwh_pg"/> </model> <translator name="myPg" type="postgresql"> <property name="SupportsNativeQueries" value="true"/> </translator>

4. Add in test-vdb.xml the views.p1 virtual procedure:

<model visible = "true" type = "VIRTUAL" name = "views"> <metadata type = "DDL"><![CDATA[ create virtual procedure p1(in dummy string) returns (procedure_result string) as begin select 'key' procedure_result; end ]]> </metadata> </model>

5. Call either SYSADMIN.setTableStats or SYSADMIN.setColumnStats stored procedures:

call "SYSADMIN.setTableStats"( "cardinality" => 1, "tableName" => 'test_dwh_pg.table_a' ) ;;

or a couple of these procedures:

call "SYSADMIN.setColumnStats"( "columnName" => 'channel_key', "distinctCount" => 1, "max" => '-1', "min" => '-1', "nullCount" => 0, "tableName" => 'test_dwh_pg.table_a' ) ;; call "SYSADMIN.setColumnStats"( "columnName" => 'shop_key', "distinctCount" => 1, "max" => '-1', "min" => '-1', "nullCount" => 0, "tableName" => 'test_dwh_pg.table_a' ) ;;

6. Run the following query:

select "a.shop_key" -- it doesn't matter what is selected here from ( select "shop_key", "channel_key" from "test_dwh_pg.table_a" ) a join ( select table_b."shop_key", table_b.medium || '_' || p.procedure_result as "channel_key" -- mandatory: coalesce between one field from dwhtable and a result field from proc (with proc consuming adwh table field) from test_dwh_pg."table_b" , table( exec views.p1(dummy)) p -- any field from dwh table may be consumed, one field has to be consumed ) b on "b.shop_key" = "a.shop_key" and "b.channel_key" = "a.channel_key" -- mandatory: 2 fields in on clause ;;
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1. In PostgreSQL create the test_a and test_b tables using the following scripts: CREATE TABLE public .table_a ( shop_key character varying (4000), channel_key character varying (4000) ); INSERT INTO public .table_a( shop_key, channel_key) VALUES ( 'shop_key' , 'channel_key' ); CREATE TABLE public .table_b ( shop_key character varying (4000), dummy character varying (4000), medium character varying (4000) ); INSERT INTO public .table_b( shop_key, dummy , medium) VALUES ( 'shop_key' , ' dummy ' , 'channel' ); 2. Add PostgreSQL database configuration in standalone-teiid.xml: <datasource jndi-name= "java:/test_dwh_pg" pool-name= "test_dwh_pg" enabled= "true" use-java-context= "true" > <connection-url> jdbc:postgresql://localhost:5432/test_dwh?charSet=utf8 </connection-url> <driver-class> org.postgresql.Driver </driver-class> <driver> org.postgresql </driver> <pool> <min-pool-size> 2 </min-pool-size> <max-pool-size> 70 </max-pool-size> <prefill> false </prefill> <use-strict-min> false </use-strict-min> <flush-strategy> FailingConnectionOnly </flush-strategy> </pool> <security> <user-name> xxxxx </user-name> <password> xxxxx </password> </security> <validation> <check-valid-connection-sql> select 0 </check-valid-connection-sql> </validation> <timeout> <blocking-timeout-millis> 120000 </blocking-timeout-millis> <idle-timeout-minutes> 5 </idle-timeout-minutes> </timeout> </datasource> 3. Add in test-vdb.xml java:/test_dwh_pg configured in the previous step as a data source: <model name= "test_dwh_pg" > <property name= "importer.useFullSchemaName" value= "false" /> <property name= "importer.tableTypes" value= "TABLE,VIEW" /> <property name= "importer.importKeys" value= "false" /> <source name= "test_dwh_pg" translator-name= "myPg" connection-jndi-name= "java:/test_dwh_pg" /> </model> <translator name= "myPg" type= "postgresql" > <property name= "SupportsNativeQueries" value= "true" /> </translator> 4. Add in test-vdb.xml the views.p1 virtual procedure: <model visible = "true" type = "VIRTUAL" name = "views" > <metadata type = "DDL" > <![CDATA[ create virtual procedure p1(in dummy string) returns (procedure_result string) as begin select 'key' procedure_result; end ]]> </metadata> </model> 5. Call either SYSADMIN.setTableStats or SYSADMIN.setColumnStats stored procedures: call "SYSADMIN.setTableStats" ( " cardinality " => 1, "tableName" => 'test_dwh_pg.table_a' ) ;; or a couple of these procedures: call "SYSADMIN.setColumnStats" ( "columnName" => 'channel_key' , "distinctCount" => 1, " max " => '-1' , " min " => '-1' , "nullCount" => 0, "tableName" => 'test_dwh_pg.table_a' ) ;; call "SYSADMIN.setColumnStats" ( "columnName" => 'shop_key' , "distinctCount" => 1, " max " => '-1' , " min " => '-1' , "nullCount" => 0, "tableName" => 'test_dwh_pg.table_a' ) ;; 6. Run the following query: select " a .shop_key" -- it doesn't matter what is selected here from ( select "shop_key" , "channel_key" from "test_dwh_pg.table_a" ) a join ( select table_b. "shop_key" , table_b.medium || '_' || p.procedure_result as "channel_key" -- mandatory: coalesce between one field from dwhtable and a result field from proc ( with proc consuming adwh table field) from test_dwh_pg. "table_b" , table ( exec views.p1( dummy )) p -- any field from dwh table may be consumed, one field has to be consumed ) b on "b.shop_key" = " a .shop_key" and "b.channel_key" = " a .channel_key" -- mandatory: 2 fields in on clause ;;
Release Note Text:
Undefined

Description

Teiid throws the following NPE:

2020-11-06 15:57:17,903 ERROR [org.teiid.PROCESSOR] (Worker2_QueryProcessorQueue20) AroM4jm+JTFz TEIID30019 Unexpected exception for request AroM4jm+JTFz.4: java.lang.NullPointerException                                                                                                                                                                                         at org.teiid.query.sql.navigator.PreOrderNavigator.doVisit(PreOrderNavigator.java:36)                                                                                                 at org.teiid.query.sql.visitor.ValueIteratorProviderCollectorVisitor.getValueIteratorProviders(ValueIteratorProviderCollectorVisitor.java:149)                                        at org.teiid.query.optimizer.relational.plantree.PlanNode.getSubqueryContainers(PlanNode.java:428)                                                                                    at org.teiid.query.optimizer.relational.plantree.PlanNode.getCorrelatedReferences(PlanNode.java:327)                                                                                  at org.teiid.query.optimizer.relational.plantree.PlanNode.getCorrelatedReferenceElements(PlanNode.java:373)                                                                           at org.teiid.query.optimizer.relational.RelationalPlanner.createSelectNode(RelationalPlanner.java:1906)                                                                               at org.teiid.query.optimizer.relational.rules.RuleChooseDependent.createDependentSetNode(RuleChooseDependent.java:675)                                                                at org.teiid.query.optimizer.relational.rules.RulePushSelectCriteria.moveCriteriaIntoOnClause(RulePushSelectCriteria.java:327)                                                        at org.teiid.query.optimizer.relational.rules.RulePushSelectCriteria.handleJoinCriteria(RulePushSelectCriteria.java:268)                                                              at org.teiid.query.optimizer.relational.rules.RulePushSelectCriteria.execute(RulePushSelectCriteria.java:137)                                                                         at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:1101)                                                                                   at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:235)                                                                                        at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:181)                                                                                                     at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:483)                                                                                                              at org.teiid.dqp.internal.process.Request.processRequest(Request.java:511)                                                                                                            at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:671)                                                                                                at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:350)                                                                                                   at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:43)                                                                                                      at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:284)                                                                                                       at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:281)                                                                                                at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:124)                                                                               at org.teiid.dqp.internal.process.ThreadReuseExecutor$2.run(ThreadReuseExecutor.java:212)                                                                                             at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)                                                                                                    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)                                                                                                    at java.lang.Thread.run(Thread.java:745)

on the planning of a particular kind of query (see workflow to reproduce).

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Assignee:: Steven Hawkins

Reporter:: Dmitrii Pogorelov

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2020/11/06 10:26 AM

Updated:: 2020/11/11 10:26 AM

Resolved:: 2020/11/11 10:26 AM