OIiveirra opened a new pull request, #4239:
URL: https://github.com/apache/doris-website/pull/4239
### What problem does this PR solve?
Document the master-development Iceberg V3 spatial contract and explicit
typed WKB constructors, associated with apache/doris#67907.
## Summary
```text
Iceberg catalog guide -> typed Geometry / Geography function pages
-> equivalent English and Chinese current docs
```
Describe XY WKB/EMPTY/NULL, CRS and algorithm preservation, Parquet storage,
DDL/write restrictions, computation limits, legacy constructor compatibility
and the direct Arrow Flight result boundary. Include catalog/database selection
and runnable constructor examples.
Only current English and Chinese docs change: this implementation targets
master and is not available in released 4.x/3.x versions. No site UI,
navigation configuration or stable page URLs change.
## Evidence
- **Before:** Current docs had no complete Iceberg spatial write/read guide
or explicit typed Geometry constructor page.
**After:** Six aligned pages describe the complete contract; six
constructor queries produced the documented Point/NULL results on the isolated
task cluster.
- Official link and SQL-function structure checks pass without errors. i18n
findings are intentional released-version exceptions; remaining SEO findings
concern pre-existing catalog metadata. External URLs were reported, not
fetched. Whitespace checks pass. A full site build was not run because this is
content-only with no UI/configuration changes.
## Merge Danger
**Door:** Two-way.
**Blast Radius:** Documentation. The development label and
unreleased-version exception prevent implying support in existing releases.
### Release note
Document development-version Iceberg V3 spatial types and typed WKB
constructors.
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