Aggregation is performed incorrectly for JOIN queries

1. In postgresql create the tbl_1 table by the following script: CREATE TABLE tbl_1 ( a integer , b bigdecimal ); INSERT INTO tbl_1( a , b) VALUES (1, 1); INSERT INTO tbl_1( a , b) VALUES (1, 2); INSERT INTO tbl_1( a , b) VALUES (1, 2); INSERT INTO tbl_1( a , b) VALUES (1, 3); 2. Add postgresql database configuration in standalone-teiid.xml <datasource jndi-name= "java:/test_pg" pool-name= "test_pg" enabled= "true" use-java-context= "true" > <connection-url> jdbc:postgresql://localhost:5432/test?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> postgres </user-name> <password> xxxxxx </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_pg configured in previous step as datasource: <model name= "test_pg" > <property name= "importer.useFullSchemaName" value= "false" /> <property name= "importer.tableTypes" value= "TABLE,VIEW" /> <property name= "importer.importKeys" value= "false" /> <source name= "test_pg" translator-name= "myPg" connection-jndi-name= "java:/test_pg" /> </model> 4. Configure in test-vdb.xml the following virtual views: <model visible = "true" type = "VIRTUAL" name = "views" > <metadata type = "DDL" > <![CDATA[ CREATE virtual view v1 as select * from test_pg.tbl_1; CREATE virtual view v2 as select 1 as a, 1 as b ]]> </metadata> </model> 5. Configure in test-vdb.xml the following virtual procedure: <model visible = "true" type = "VIRTUAL" name = "procs" > <metadata type = "DDL" > <![CDATA[ create procedure pr() returns (a integer, b integer) as begin select 1, 1; end ]]> </metadata> </model> 6. Run test queries mentioned in description field: --Run test queries and check result , which should be: --2 --1 --1 -- result is correct select count (v2.b) from views.v1 join views.v2 on true group by v1.b; -- result is correct select count (v2.b) from views.v1 left join views.v2 on true group by v1.b; -- result is incorrect select count (v2.b) from views.v1 right join views.v2 on true group by v1.b; -- result is incorrect select count (v2.b) from views.v1 join ( call procs.pr()) v2 on true group by v1.b; -- result is incorrect select count (v2.b) from views.v1 left join ( call procs.pr()) v2 on true group by v1.b; -- result is incorrect select count (v2.b) from views.v1 right join ( call procs.pr()) v2 on true group by v1.b;