Unexpected error `date_add function does not support unit DAY_HOUR yet` occurs
Open
Nobody has claimed this yet.
component/compute
severity/moderate
type/bug
- Dominant language
- C++
- Stars
- 1k
- Forks
- 423
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 24
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
use test;
drop table if exists t;
CREATE TABLE t (c1 FLOAT UNSIGNED);
INSERT INTO t VALUES (47),(28.1237);
ALTER TABLE test.t SET TIFLASH REPLICA 1;
set tidb_allow_mpp=1;set tidb_enforce_mpp=1; set tidb_isolation_read_engines='tiflash';
SELECT (DATE_ADD(BIN(c1), INTERVAL 1 DAY_HOUR)) AS f1 FROM (SELECT 1 FROM t) AS t1 JOIN (SELECT c1 FROM t) AS t2 ON 1;
2. What did you expect to see? (Required)
success.
3. What did you see instead (Required)
ERROR 1105 (HY000): other error for mpp stream: From MPP<query:<query_ts:1677567990161836438, local_query_id:3, server_id:1166994, start_ts:439764383203328003>,task_id:2>: Code: 0, e.displayText() = DB::TiFlashException: date_add function does not support unit DAY_HOUR yet., e.what() = DB::TiFlashException,
4. What is your TiFlash version? (Required)
v6.6
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file or test is named. Start by running the provided SQL reproduction against TiFlash v6.6 and locate the handling of DATE_ADD with the DAY_HOUR unit; the work is done when the query succeeds without the reported MPP stream error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, sql
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100