[
https://issues.apache.org/jira/browse/IMPALA-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17779453#comment-17779453
]
ASF subversion and git services commented on IMPALA-11477:
----------------------------------------------------------
Commit 141e3f1748822fa2083840bb96fecf53b5c58582 in impala's branch
refs/heads/master from Noemi Pap-Takacs
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=141e3f174 ]
IMPALA-12481: Fix sorted-run-merger-ir.cc make dependency
IMPALA-11477 added sorted-run-merger-ir.cc, and incorrectly
added it to the Runtime target, not RuntimeIr.
This patch fixes the issue by adding sorted-run-merger-ir.cc
to RuntimeIr instead in CMakeLists.txt.
Change-Id: Id39cc9613bec60f6308db05dde99f375c68166e0
Reviewed-on: http://gerrit.cloudera.org:8080/20604
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Codegen Heapify in SortedRunMerger
> ----------------------------------
>
> Key: IMPALA-11477
> URL: https://issues.apache.org/jira/browse/IMPALA-11477
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Noemi Pap-Takacs
> Assignee: Noemi Pap-Takacs
> Priority: Minor
> Fix For: Impala 4.3.0
>
>
> SortedRunMerger is used to merge multiple, already sorted runs. It is used
> for external merge in the sorter (SortNode, PartialSortNode and TopNNode),
> and in KRPC data stream receiver (ExchangeNode).
> SortedRunMerger builds and maintains a min heap of the sorted input runs.
> Codegening this Heapify function and the comparator could improve the
> performance of the merger.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
