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[HIVE-6289] StatsOptimizer may benefit from fetching stats for multiple columns at once - Hive - [issue]
...After HIVE-6157, StatsOptimizer would retrieve partition column stats in bulk for all requisite partitions, but it would still retrieve stats for each column individually as it does the opti...
http://issues.apache.org/jira/browse/HIVE-6289    Author: Sergey Shelukhin, 2014-01-23, 19:19
Re: Review Request 17217: HIVE-6288 MSCK can be slow when adding partitions - Hive - [mail # dev]
...-----------------------------------------------------------This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/17217/-------------------------------------...
2 emails [+ more]    Author: Sergey Shelukhin, 2014-01-23, 18:58
Review Request 17217: HIVE-???? MSCK can be slow when adding partitions - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/17217/  Review request for hive, Ashutosh Chauhan and Gunther Hagleitner.   Repository: hiv...
   Author: Sergey Shelukhin, 2014-01-23, 00:49
[HIVE-6265] dedup Metastore data structures or at least protocol - Hive - [issue]
...Metastore currently stores SD per partition, and column schema/serde/... per SD.Most of the time all the partitions have the same setup in a table, the only different things in SD/CD/... bei...
http://issues.apache.org/jira/browse/HIVE-6265    Author: Sergey Shelukhin, 2014-01-22, 22:49
[HIVE-6193] change partition pruning request to metastore to use list instead of set - Hive - [issue]
...Change partition pruning request to metastore to use list instead of set.Set is unwieldy w.r.t. compat, better get rid of it before API in this form was ever shipped....
http://issues.apache.org/jira/browse/HIVE-6193    Author: Sergey Shelukhin, 2014-01-18, 17:19
[HIVE-5951] improve performance of adding partitions from client - Hive - [issue]
...Adding partitions to metastore is currently very inefficient. There are small things like, for !ifNotExists case, DDLSemanticAnalyzer gets the full partition object for every spec (which is ...
http://issues.apache.org/jira/browse/HIVE-5951    Author: Sergey Shelukhin, 2014-01-16, 22:02
Re: Review Request 16074: HIVE-5951 improve performance of adding partitions from client - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/16074/  (Updated Jan. 14, 2014, 7:33 p.m.)   Review request for hive and Ashutosh Chauhan. ...
9 emails [+ more]    Author: Sergey Shelukhin, 2014-01-14, 19:33
Re: Review Request 16747: Add file pruning into Hive - Hive - [mail # dev]
...  just checking... if it makes sense its ok    probably better to keep as is then... thanks    ah, ic. Thanks   - Sergey   This is an automatically generat...
2 emails [+ more]    Author: Sergey Shelukhin, 2014-01-13, 21:58
[HIVE-5483] use metastore statistics to optimize max/min/etc. queries - Hive - [issue]
...We have discussed this a little bit.Hive can answer queries such as select max(c1) from t purely from metastore using partition statistics, provided that we know the statistics are up to dat...
http://issues.apache.org/jira/browse/HIVE-5483    Author: Sergey Shelukhin, 2014-01-13, 21:35
[HIVE-6190] redundant columns in metastore schema for stats - Hive - [issue]
...package.jdo has:      <field name ="dbName">        <column name="DB_NAME" length="128" jdbc-type="VARCHAR" allows-null="false"/>&nbs...
http://issues.apache.org/jira/browse/HIVE-6190    Author: Sergey Shelukhin, 2014-01-13, 19:42
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