apache / apache/gluten

[CH] Diff on mod zero

Open
#7,183 1 comment 0 reactions 0 assignees View on GitHub
bug triage
Dominant language
Scala
Stars
1.6k
Forks
657
Avg merge
2d 14h
Merged PRs (30d)
80

Description

### Backend

CH (ClickHouse)

### Bug description

Vanila:
image

Gluten with CH backend:
image

### Spark version

None

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

_No response_

Contributor guide

Open the contributing guide

Research direction

Start with the attached Vanilla and Gluten-with-CH screenshots and investigate the reported diff when modulo is zero in the ClickHouse backend. No source file, test, Spark version, configuration, or reproducible query is provided, so first establish a minimal reproduction and identify the relevant backend entry point; done means the results match Vanilla for that case.

Written by the indexing model from the issue text.

Assessment

Tech stack
clickhouse, scala
Domain
backend, databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.