Update statement doesn't work correctly for data sources in some cases ---------------------------------------------------------------------- Key: TEIID-4740 URL: https://issues.jboss.org/browse/TEIID-4740 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 9.0.3 Environment: teiid-9.0.3 on WildFly Full 9.0.2.Final (WildFly Core 1.0.2.Final) Reporter: dalex dalex Assignee: Steven Hawkins Priority: Blocker Running the following query: {code:sql} UPDATE test_int.contacttest SET test_int.contacttest.salutation = ( select test_int.updatetest.prefix from test_int.updatetest where test_int.updatetest.id = test_int.contacttest.id ); {code} works correctly changing salutation field value according to where condition (note that contacttest and updatetest table are in the same test_int data source). But the following query: {code:sql} UPDATE test.contacttest SET test.contacttest.salutation = ( select test_int.updatetest.prefix from test_int.updatetest where test_int.updatetest.id = test.contacttest.id ); {code} will fail as we try to update "contacttest" table of "test" data source from another "test_int" data source using "updatetest" table in where condition. The query fails showing the following error message: {code} Error: TEIID30253 Remote org.teiid.api.exception.query.QueryPlannerException: TEIID30253 Source UPDATE or DELETE command "UPDATE test.contacttest SET salutation = (SELECT test_int.updatetest.prefix FROM test_int.updatetest WHERE test_int.updatetest.id = test.contacttest.id LIMIT 2)" contains non-pushdown constructs and no compensating action can be taken as the table lacks a unique key or the source does not support equality predicates. SQLState: 50000 ErrorCode: 30253 {code}