json_length(json_col, path_col) return unexpect error

[SeaRise]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

DROP TABLE IF EXISTS test.c_t2;
CREATE TABLE test.c_t2 ( col json );
ALTER TABLE test.c_t2 SET TIFLASH REPLICA 1;

set tidb_allow_mpp=1;set tidb_enforce_mpp=1; set tidb_isolation_read_engines='tiflash';

select json_length(col, '*') from test.c_t2;

2. What did you expect to see? (Required)

query success

3. What did you see instead (Required)

ERROR 1105 (HY000): other error for mpp stream: Code: 42, e.displayText() = DB::Exception: Number of arguments for function jsonLength doesn't match: passed 2 , should be 1, e.what() = DB::Exception,

4. What is your TiFlash version? (Required)

Git Commit Hash: 6db1d6b79c2855cf022f04ced86af3e6bc8b0dcf