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Re: ORC file block size - Hive - [mail # dev]
...In hive-0.14, block size is configurable. It is no more twice the value of stripe size. ThanksPrasanthCONFIDENTIALITY NOTICENOTICE: This message is intended for the use of the individual or ...
   Author: Prasanth Jayachandran, 2014-07-25, 23:16
Re: CREATE TABLE throwing error for large number of columns (very long script) - Hive - [mail # user]
...What version of hive are you using? What file format are you using?ThanksPrasanth JayachandranOn Jul 24, 2014, at 5:03 PM,   wrote:CONFIDENTIALITY NOTICENOTICE: This message is intended...
   Author: Prasanth Jayachandran, 2014-07-25, 00:08
Re: Reg:Column Statistics with Parquet - Hive - [mail # user]
...You have to explicit specifics column list in analyze command for gathering columns stats.This command will only collect basic stats like number of rows, total file size, raw data size, numb...
   Author: Prasanth Jayachandran, 2014-07-24, 18:20
Re: select list for dynamic partition insert - Hive - [mail # user]
...From the error msg it looks like there are too many distinct values in partition column. Try increasing the count hive.exec.max.dynamic.partitions.pernode to a number >100. If you already...
   Author: Prasanth Jayachandran, 2014-07-22, 20:13
Re: hive 13: dynamic partition inserts - Hive - [mail # dev]
...Hi VishnuYes. There is change in the way dynamic partitions are inserted in hive 13. The new dynamic partitioning is highly scalable and uses very less memory. Here is the related JIRA  ...
   Author: Prasanth Jayachandran, 2014-07-22, 18:28
Re: ORC with bloom filters - Hive - [mail # user]
...ORC does not have bloom filters yet.ThanksPrasanth JayachandranOn Jul 17, 2014, at 10:23 PM, Suma Shivaprasad  wrote:CONFIDENTIALITY NOTICENOTICE: This message is intended for the use o...
   Author: Prasanth Jayachandran, 2014-07-18, 05:36
Re: custom table/column statistics - Hive - [mail # user]
...Hi AlexHere is the JIRA that tracks column group statistics https://issues.apache.org/jira/browse/HIVE-6540Computing count distinct accurately demands lots of memory esp. in cases where ther...
[+ more]    Author: Prasanth Jayachandran, 2014-06-10, 05:25
Re: [VOTE] Apache Hive 0.13.1 Release Candidate 1 - Hive - [mail # dev]
...Hi Sushanthhttps://issues.apache.org/jira/browse/HIVE-7067This bug is critical as it returns wrong results for min(), max(), join queries that uses date/timestamp columns from ORC table.The ...
   Author: Prasanth Jayachandran, 2014-05-17, 04:27
Re: Query Using Stats - Hive - [mail # user]
...Bryan,The flag you are looking for is hive.compute.query.using.stats. By default this optimization is disabled. You might need to enable it to use it. Also the min/max/sum metadata are not l...
   Author: Prasanth Jayachandran, 2014-05-17, 00:19
Re: ORC file in Hive 0.13 throws Java heap space error - Hive - [mail # user]
...With Hive 0.13 the ORC memory issue is mitigated because of this optimization https://issues.apache.org/jira/browse/HIVE-6455. This optimization is enabled by default.But having 3283 columns...
   Author: Prasanth Jayachandran, 2014-05-16, 21:39
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