Skip to content

Enable pushing aggregate past Join by default #6538

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
deniskuzZ wants to merge 1 commit into
base: master
Choose a base branch
from
+1 −1
Draft

Enable pushing aggregate past Join by default #6538

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1793,7 +1793,7 @@ public static enum ConfVars {
"projected the majority of columns from these table. This optimization trims fields at root of tree and " +
"then joins back affected tables at top of tree to get rest of columns. " +
"Set this to 0.0 to disable this optimization or increase it for more aggressive optimization."),
AGGR_JOIN_TRANSPOSE("hive.transpose.aggr.join", false, "push aggregates through join"),
AGGR_JOIN_TRANSPOSE("hive.transpose.aggr.join", true, "push aggregates through join"),
AGGR_JOIN_TRANSPOSE_UNIQUE("hive.transpose.aggr.join.unique", true, "push aggregates through join(s) in "
+ "case data is regrouped on a previously unique column"),
SEMIJOIN_CONVERSION("hive.optimize.semijoin.conversion", true, "convert group by followed by inner equi join into semijoin"),
Expand Down
Loading