branch-4.1: [Enhance](func) Delete useless code of split_by_char #64801#64815
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### Release note
There is a function registration part for `SPLIT_BY_CHAR` in FE, but
there is no corresponding implementation in BE.
```sql
Doris> SELECT SPLIT_BY_CHAR('apple:banana:cherry', ':');
-- ERROR 1105 (HY000): errCode = 2, detailMessage = (127.0.0.1)[INTERNAL_ERROR]Could not find function split_by_char, arg String: String, String: String return Array(Nullable(String))
```
Since the functionality of this function has already been implemented by
`SPLIT_BY_STRING`, the implementation of this function is not meaningful
and can be directly deleted.
Contributor
|
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
Contributor
|
run buildall |
yiguolei
approved these changes
Jun 25, 2026
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Cherry-picked from #64801