[jira] [Created] (TRAFODION-3122) For each table, add a label file, for some use case can use this label file to read stats

[liu ming (JIRA)]

liu ming created TRAFODION-3122:
-----------------------------------

             Summary: For each table, add a label file, for some use case can 
use this label file to read stats
                 Key: TRAFODION-3122
                 URL: https://issues.apache.org/jira/browse/TRAFODION-3122
             Project: Apache Trafodion
          Issue Type: Improvement
            Reporter: liu ming
            Assignee: liu ming


Add a label file in HDFS for each trafodion table, it can be used to save basic 
stats for a given table.

For example, after load, update the label file with rows loaded.

If later, the table is not updated, when user issue count(*), can use this 
label file to get count, to improve the count performance.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)