Re: questions about statistics in 0.7

2011-05-26 Thread Ning Zhang
On May 26, 2011, at 1:28 PM, Guy Bayes wrote: Crap sorry hit send too early questions 1: Job overhead of generating statistics on the fly with set hive.stats.autogather=true;? Overhead is minimum. The only accountable overhead is to insert a row into a RDBMS/HBase at the end of a task. At the

Re: questions about statistics in 0.7

2011-05-26 Thread Guy Bayes
Crap sorry hit send too early questions 1: Job overhead of generating statistics on the fly with set hive.stats.autogather=true;? 2: Is stat descriptions in describe table extended implemented? I've gathered stats on a table but do not see the expected entries (rowNum = , etc) in the describe st