Alex Behm has posted comments on this change. Change subject: IMPALA-1654: DDL for multiple partitions ......................................................................
Patch Set 4: (3 comments) http://gerrit.cloudera.org:8080/#/c/5726/4/docs/topics/impala_alter_table.xml File docs/topics/impala_alter_table.xml: Line 182: in the <codeph>COMPUTE STATS</codeph> statement. COMPUTE INCREMENTAL STATS only (the PARTITION clause does not apply to COMPUTE STATS) Line 183: Some forms of <codeph>ALTER TABLE</codeph> still only apply to one partition The new partition selection logic also works for SHOW FILES IN <tbl> PARTITION (...) Line 200: large numbers of partitions. Mmention IMPALA-4106 as a known scalability limitation, typically these bulk operations should be more efficient than doing multiple ALTER TABLE statements in quick succession. -- To view, visit http://gerrit.cloudera.org:8080/5726 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I2060552d5081e5f93b1b1f398414c52fa03f215b Gerrit-PatchSet: 4 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: John Russell <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Amos Bird <[email protected]> Gerrit-Reviewer: John Russell <[email protected]> Gerrit-HasComments: Yes
