jiayuasu opened a new pull request, #3116:
URL: https://github.com/apache/sedona/pull/3116
## What
A new blog post introducing SedonaSpark's **STAC catalog reader** through a
worked spatial-join example.
- Read a STAC catalog (the public Element 84 `earth-search` Sentinel-2 API)
into a Sedona DataFrame with `sedona.read.format("stac")`
- Spatial + temporal + cloud-cover **filter pushdown** to the STAC API
- An **`ST_Intersects` join** of scene footprints against a vector AOI layer
— plus coverage percentage via `ST_Area(ST_Intersection(...))` and a `LEFT ANTI
JOIN` to surface coverage gaps
- The reproducible join example uses Sedona's bundled sample STAC collection
(`datasource_stac/collection.json`) so readers can run it offline, verbatim
- Four self-contained SVG figures (cover, join, pushdown, coverage)
Uses the existing `jia` author entry; blog `.md` is license-exempt per
`.pre-commit-config.yaml`.
## Also included
A small `on_page_markdown` hook (`docs-overrides/hooks/blog_star_cta.py`)
that appends a "Star on GitHub" call-to-action — linking `apache/sedona`,
`apache/sedona-db`, and `apache/sedona-spatialbench` — to the end of every blog
post. It's a separate concern kept in its own commit; happy to split it into
its own PR if you'd prefer.
## Notes
- Opening as a **draft** for review.
- The code examples were run against Apache Sedona; the console output shown
in the post is real.
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