[docs](ddl)update sync-materialized-view to reflect latest changes (#3101)

## Versions 

- [x] dev
- [x] 4.x
- [ ] 3.x
- [ ] 2.1

## Languages

- [x] Chinese
- [x] English

## Docs Checklist

- [ ] Checked by AI
- [ ] Test Cases Built

Author: starocean999