jcamachor commented on a change in pull request #1147:
URL: https://github.com/apache/hive/pull/1147#discussion_r457829820
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -2162,7 +2162,8 @@ private static void populateLlapDaemonVarsSet(Set<String>
llapDaemonVarsSetLocal
"Whether Hive enables the optimization about converting common join
into mapjoin based on the input file size. \n" +
"If this parameter is on, and the sum of size for n-1 of the
tables/partitions for a n-way join is smaller than the\n" +
"specified size, the join is directly converted to a mapjoin (there is
no conditional task)."),
-
+ HIVE_CONVERT_ANTI_JOIN("hive.auto.convert.anti.join", false,
Review comment:
Is there any reason why we should not enable this by default in master?
It seems it is always beneficial to execute the antijoin since we already have
a vectorized implementation too. That would increase the test coverage for the
feature.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
