John Russell has posted comments on this change. Change subject: IMPALA-5309: [DOCS] Add TABLESAMPLE clause to SELECT statement ......................................................................
Patch Set 1: For my TABLESAMPLE examples, I used a trivial amount of data just to make it obvious what was happening based on percentages vs. number and sizes of data files. Perhaps Alex or Mostafa has a good example of a "beefy" query that illustrates a big speedup or less overhead when using sampling... -- To view, visit http://gerrit.cloudera.org:8080/7680 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Idd7e5b7cfe11c986348bc6c8d1b11921f34df336 Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: John Russell <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Greg Rahn <[email protected]> Gerrit-Reviewer: John Russell <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-HasComments: No
