Anurag Mantripragada has uploaded a new patch set (#7). ( http://gerrit.cloudera.org:8080/14720 )
Change subject: IMPALA-9104: Support retrieval of PK/FK information through impala-hs2-server. ...................................................................... IMPALA-9104: Support retrieval of PK/FK information through impala-hs2-server. The goal is to let JDBC clients get constraint information from Impala tables. We implement two new metadata operations in impala-hs2-server, GetPrimaryKeys and GetCrossReference, whose thrift definitions are taken from Hive. For these to work, new TCLIService methods were added. In FE, these two operations are implemented to get the information from tables in the catalog. Much like GetColumns(), tables need to be loaded in order to be able to get PK/FK information. We wait for the PK table/FK table to load. In the implementation, PK/FK information is returned ONLY if the user has access to ALL the columns involved in the PK/FK relationship. Testing: - Added three test tables to our test datasets since most of our FE tests relied on dummy tables or testdata. It was difficult to test PK/FK with these methods. Also, we can build on this testdata in future when we make optimizer improvements. - Added unit tests in AuthorizationTest and JDBCtest. - Added e2e test in test_hs2.py Caveats: - Ranger needs OWNER user information for authorization. Since this is HMS metadata that we do not aggresively load, this information is not available for IncompleteTables. Some foreign key tables (fact tables for example) might have FK/PK relationships with several PK tables some of which might not be loaded in catalog. Currently we have no way to check column previleges without owner user information tables. We do not return keys involving such columns. Therefore, when Ranger is used, there maybe missing PK/FK relationships for parent tables that are not loaded. We should fix this seperately. - Retrieval of constraints is not yet supported in LocalCatalog mode. See IMPALA-9158. Change-Id: I8942dfbbd4a3be244eed1c61ac2ce17069960477 --- M be/src/rpc/kerberos-test.cc M be/src/service/impala-hs2-server.cc M be/src/service/impala-server.h M bin/rat_exclude_files.txt M common/thrift/Frontend.thrift M common/thrift/hive-1-api/TCLIService.thrift M fe/src/compat-hive-2/java/org/apache/impala/compat/MetastoreShim.java M fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java M fe/src/main/java/org/apache/impala/analysis/TableDef.java M fe/src/main/java/org/apache/impala/catalog/FeFsTable.java M fe/src/main/java/org/apache/impala/catalog/FeTable.java M fe/src/main/java/org/apache/impala/catalog/HdfsTable.java M fe/src/main/java/org/apache/impala/catalog/Table.java M fe/src/main/java/org/apache/impala/catalog/local/LocalFsTable.java M fe/src/main/java/org/apache/impala/catalog/local/LocalTable.java M fe/src/main/java/org/apache/impala/service/Frontend.java M fe/src/main/java/org/apache/impala/service/MetadataOp.java M fe/src/test/java/org/apache/impala/authorization/AuthorizationTest.java M fe/src/test/java/org/apache/impala/service/JdbcTest.java M testdata/data/README A testdata/data/child_table.txt A testdata/data/parent_table.txt A testdata/data/parent_table_2.txt M testdata/datasets/functional/functional_schema_template.sql M tests/hs2/test_hs2.py 25 files changed, 820 insertions(+), 19 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/20/14720/7 -- To view, visit http://gerrit.cloudera.org:8080/14720 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I8942dfbbd4a3be244eed1c61ac2ce17069960477 Gerrit-Change-Number: 14720 Gerrit-PatchSet: 7 Gerrit-Owner: Anurag Mantripragada <anu...@cloudera.com> Gerrit-Reviewer: Anurag Mantripragada <anu...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Thomas Tauber-Marshall <tmarsh...@cloudera.com> Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>
