Incorrect work of left join statement

1. In postgresql create the tbl_1 table by the following script: create table test_tables. public .test_emails(email varchar (4000));   insert into test_tables. public .test_emails values ( 'Test1@mail.com' ); insert into test_tables. public .test_emails values ( 'test2@mail.com' ); insert into test_tables. public .test_emails values ( 'test3@mail.com' ); 2. Add postgresql database configuration in standalone-teiid.xml < datasource jndi-name = "java:/test_tables" pool-name = "test_tables" enabled = "true" use-java-context = "true" > < connection -url>jdbc:postgresql://localhost:5432/test_tables?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_tables" > < property name = "importer.useFullSchemaName" value = "false" /> < property name = "importer.tableTypes" value = "TABLE,VIEW" /> < property name = "importer.importKeys" value = "false" /> < source name = "test_tables" translator-name = "myPg" connection-jndi name = "java:/test_tables" /> </ model > 4. Configure in test-vdb.xml the following virtual view: < model visible = "true" type = "VIRTUAL" name = "views" > < metadata type = "DDL" > <![CDATA[ CREATE virtual view test_view_emails as SELECT 'test1@mail.com' as email ]]> </ metadata > </ model > 5. Run the test query mentioned in description field: SELECT a.email, b.email, lower (a.email), lower (b.email) FROM test_tables.test_emails as a left join views.test_view_emails as b on lower (a.email)= lower (b.email); and compare results gotten via teiid and PostgreSQL.