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Hudson commented on HIVE-1003: ------------------------------ Integrated in Hive-trunk-h0.21 #1048 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1048/]) HIVE-1003: optimize metadata only queries (Marcin Kurczych, Namit Jain via He Yongqiang) heyongqiang : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1195577 Files : * /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java * /hive/trunk/jdbc/src/java/org/apache/hadoop/hive/jdbc/HiveDatabaseMetaData.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExecDriver.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapRedTask.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapredLocalTask.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Task.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/OneNullRowInputFormat.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyOptimizer.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/PhysicalOptimizer.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/GroupByDesc.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFType.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFMax.java * /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFMin.java * /hive/trunk/ql/src/test/queries/clientpositive/metadataonly1.q * /hive/trunk/ql/src/test/results/clientpositive/metadataonly1.q.out * /hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/NullStructSerDe.java > optimize metadata only queries > ------------------------------ > > Key: HIVE-1003 > URL: https://issues.apache.org/jira/browse/HIVE-1003 > Project: Hive > Issue Type: New Feature > Components: Query Processor > Reporter: Namit Jain > Assignee: Marcin Kurczych > Fix For: 0.9.0 > > Attachments: D105.1.patch, HIVE-1003.1.patch, hive.1003.2.patch, > hive.1003.3.patch, hive.1003.4.patch > > > Queries like: > select max(ds) from T > where ds is a partitioning column should be optimized. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira