sql mode does not set in DAGRequest
Open
severity/minor
sig/planner
type/bug
- Dominant language
- Go
- Stars
- 40.5k
- Forks
- 6.2k
- PR merge metrics
- PR metrics pending
Description
## Bug Report
sql mode does not set in DAGRequest so any coprocessor/mpp request that is pushed to tikv/tiflash may not be handled correctly due to sql mode.
Contributor guide
Research direction
Start by tracing where DAGRequest is constructed and how coprocessor or MPP requests are sent to TiKV and TiFlash. Check how SQL mode is represented and propagated through those paths. Done means pushed requests carry the required SQL mode and the relevant request behavior is covered by tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- go, sql
- Domain
- databases, distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100