[MCOL-5514] Disk join step make parallel joining Created: 2023-06-13  Updated: 2023-08-02  Resolved: 2023-08-02

Status: Closed
Project: MariaDB ColumnStore
Component/s: ExeMgr
Affects Version/s: None
Fix Version/s: 23.10

Type: Bug Priority: Major
Reporter: Denis Khalikov Assignee: Denis Khalikov
Resolution: Fixed Votes: 0
Labels: rm_perf

Sprint: 2023-8
Assigned for Review: Roman Roman
Assigned for Testing: Daniel Lee Daniel Lee (Inactive)

 Description   

Currently DJS makes join in one thread, but we basically has an ability to do it in parallell.
1. Traverse partition tree once collecting pointers to partition.
2. Split them in groups (one group one thread).
3. Process each group in each thread, applying join.

 Comments   
Comment by Daniel Lee (Inactive) [ 2023-08-02 ]

Build verified: develop branch

engine: 1a49a09af3f215dc9b177ac50cfdd234476c7d04
server: 62d6100a913699fec9ff48284a76bfe6226e70bc
buildNo: 8284

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