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[HIVE-5898] Make fetching of column statistics configurable - Hive - [issue]
...This is a subtask of HIVE-5369. Current metastore api for fetching column statistics can only be done for per partition and per column basis. This will impact the performance of statistics a...
http://issues.apache.org/jira/browse/HIVE-5898    Author: Prasanth J, 2014-01-26, 00:48
[HIVE-5921] Better heuristics for worst case statistics estimates for join, limit and filter operator - Hive - [issue]
...This is a subtask of HIVE-5369. In worst case (i.e; absence of column statistics) HIVE-5849 improved the basic statistics with heuristics. But the heuristics failed to provide better estimat...
http://issues.apache.org/jira/browse/HIVE-5921    Author: Prasanth J, 2014-01-26, 00:48
[HIVE-5369] Annotate hive operator tree with statistics from metastore - Hive - [issue]
...Currently the statistics gathered at table/partition level and column level are not used during query planning stage. Statistics at table/partition and column level can be used for optimizin...
http://issues.apache.org/jira/browse/HIVE-5369    Author: Prasanth J, 2014-01-26, 00:48
[HIVE-6284] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6284    Author: Prasanth J, 2014-01-24, 02:40
[HIVE-6283] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6283    Author: Prasanth J, 2014-01-24, 02:39
[HIVE-6282] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6282    Author: Prasanth J, 2014-01-24, 02:39
[HIVE-6281] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6281    Author: Prasanth J, 2014-01-24, 02:39
[HIVE-6280] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6280    Author: Prasanth J, 2014-01-24, 02:39
[HIVE-6279] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6279    Author: Prasanth J, 2014-01-24, 02:39
[HIVE-6278] batchSize computation in Vectorize ORC reader can cause BufferUnderFlowException when PPD is enabled - Hive - [issue]
...nextBatch() method that computes the batchSize is only aware of stripe boundaries. This will not work when PPD in ORC is enabled as PPD works at row group level (stripe contains multiple row...
http://issues.apache.org/jira/browse/HIVE-6278    Author: Prasanth J, 2014-01-24, 02:39
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