boluor opened a new pull request, #3860:
URL: https://github.com/apache/doris-website/pull/3860
## Background
A native **both-language** re-check — examples that fail identically in EN
and ZH, so a cross-language diff never surfaces them — found five
string-function pages whose documented example result does not match the
server. All are deterministic and verified on a fresh **Doris 4.1.1** cluster.
Each is wrong in **both EN and ZH**.
## Bugs fixed
| Page | Documented | Correct (cluster) | Why |
|---|---|---|---|
| `ends-with.md` | `ENDS_WITH('testing','test')` = `1` | `0` | "testing"
does not end with "test" |
| `reverse.md` | `irànnaumuḍḍ` | `irànnamuḍḍ` | spurious extra `u`; actual
reverse of `ḍḍumannàri` |
| `mask-last-n.md` | `Hello你好nnn` (header `Hello你好123`) | `Helloṭṛnnn` |
result block was for a different input than the example SQL
`mask_last_n('Helloṭṛ123', 9)` |
| `position.md` | `13` | `12` | `'hello'` starts at character position 12 of
`'ṭṛì ḍḍumai hello'` |
| `mask.md` | `Xxxx999` | `Axxx999` | the example demonstrates a custom
upper-case replacement `'ABC'`, so `T → A`, not the default `X` |
## Cluster verification (Doris 4.1.1)
```
ENDS_WITH('test','test'), ENDS_WITH('testing','test') -> 1 , 0
REVERSE('ṭṛì ḍḍumai'), REVERSE('ḍḍumannàri') -> iamuḍḍ ìṛṭ ,
irànnamuḍḍ
mask_last_n('Helloṭṛ123', 9) -> Helloṭṛnnn
POSITION('ḍḍumai' IN 'ṭṛì ḍḍumai hello'),
POSITION('hello','ṭṛì ḍḍumai hello',8) -> 5 , 12
mask('Test123','ABC','xyz','999') -> Axxx999
```
The same fixes apply to `dev` (identical wrong values); a follow-up backport
PR will cover dev after verification on a master build.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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