SELECT COUNT(*) FROM sparse_features_small; And I receive back :
Total MapReduce CPU Time Spent: 3 seconds 330 msec OK 100000 Rather than the expected 50000 I am running hive 11.2 On Mon, Jul 29, 2013 at 9:51 PM, j.barrett Strausser < j.barrett.straus...@gmail.com> wrote: > Hello All, > > Why does TABLESAMPLE(N rows) produce ouptut with 2*N rows? > > > I have the following script: > > DROP TABLE IF EXISTS sparse_features_small; > > CREATE TABLE sparse_features_small ROW FORMAT DELIMITED FIELDS TERMINATED > BY ',' LINES TERMINATED BY '\n' as > > SELECT > * > FROM > sparse_features > TABLESAMPLE(50000 ROWS) > > > After I execute this by sourcing the file, I can then execute : > > > > > > > > -- > > > https://github.com/bearrito > @deepbearrito > -- https://github.com/bearrito @deepbearrito
