feat(rust/sedona-functions): Add raster display support to SD_Format

[Kontinuation]

Summary

• Add raster formatting to SD_Format, displaying raster metadata (dimensions, geotransform, band count, outdb status) as a human-readable string
• Previously SD_Format returned an error for raster types; now it produces output like: Raster[w=1, h=2, ul=(1.000000, 2.000000), scale=(0.000000, -0.000000), skew=(0.000000, 0.000000), bands=1, outdb=false]
• Respects the width_hint option for truncation
• Add sedona-raster dependency to sedona-functions

Example

> SELECT RS_Example();
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                        rs_example()                                                        │
│                                                           raster                                                           │
╞════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╡
│ Raster[w=64, h=32, ul=(43.080000, 79.070000), scale=(2.000000, 2.000000), skew=(1.000000, 1.000000), bands=3, outdb=false] │
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘

[Copilot]

Pull request overview

This pull request adds raster formatting support to the SD_Format function, enabling raster types to be displayed as human-readable strings. Previously, SD_Format returned an error when encountering raster types. Now it produces formatted output showing key metadata such as dimensions, geotransform parameters, band count, and OutDb status.

Changes:

• Modified SD_Format to support raster types by adding a new raster_value_to_formatted_value function
• Updated type conversion logic to map raster types to UTF8 output instead of returning an error
• Added sedona-raster dependency to sedona-functions

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
rust/sedona-functions/src/sd_format.rs	Adds raster formatting logic with metadata display and width_hint support
rust/sedona-functions/Cargo.toml	Adds sedona-raster workspace dependency
Cargo.lock	Updates lock file with sedona-raster dependency for sedona-functions

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[paleolimbot]

Thank you!

[paleolimbot]

At least for rasters that are not rotated or skewed, what I would really like to know are the bounds and CRS. Can this output be more like:

[WxH/nbands] @ [xmin ymin xmax ymax] / crs <outdb>

That may be a little more compact. Even for skewed data the 2D bounds are probably more useful output for human reading.

(Drawing from the last time I had to decide this: https://paleolimbot.github.io/wk/reference/grd.html )

[Kontinuation]

OK. I believe that this format requires the CRS to be abbreviated when it is possible. I'll submit the patch for refactoring the CRS abbreviation cache for ST_SetCRS before implementing this raster display format.

[paleolimbot]

I'm going to merge this since the lack of table output for rasters means we the examples we add error while rendering (e.g., #638), and not including those examples is more follow up work. I've created a follow up for the cache issue and if there are any outstanding issues!