[SPARK-37567] reuse Exchange failed - ASF JIRA

Rank to Top

Rank to Bottom

Attach files

Attach Screenshot

Bulk Copy Attachments

Bulk Move Attachments

Voters

Watch issue

Watchers

Create sub-task

Convert to sub-task

Link

Clone

Labels

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Not A Problem
Affects Version/s: 3.1.1
Fix Version/s: None
Component/s: SQL
Labels:

Description

PR available：https://github.com/apache/spark/pull/34858

use case：query2 in TPC-DS.There are three exchange subquery will scan the same table "store_sales" in logical plan,these subqueries meet exchange reuse rule.I confirm that the exchange use rule work in physical plan.But when spark execute the physical plan,I find out

exchange reuse failed,reused exchange has been executed twice.

physical plan：

execution stages：