Eugene Koifman created HIVE-4590: ------------------------------------ Summary: HCatalog documentation example is wrong Key: HIVE-4590 URL: https://issues.apache.org/jira/browse/HIVE-4590 Project: Hive Issue Type: Bug Components: Documentation Affects Versions: 0.10.0 Reporter: Eugene Koifman Priority: Minor
http://hive.apache.org/docs/hcat_r0.5.0/inputoutput.html#Read+Example reads The following very simple MapReduce program reads data from one table which it assumes to have an integer in the second column, and counts how many different values it sees. That is, it does the equivalent of "select col1, count(*) from $table group by col1;". The description of the query is wrong. It actually counts how many instances of each distinct value it find. For example, if values of col1 are {1,1,1,3,3,3,5) it will produce 1, 3 3, 2, 5, 1 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira