Gang Wu

CI failures are unrelated. I will merge it shortly.

@raulcd Please feel free to port it to maint-17.0.0

> Is the ultimate goal of this PR to merge GeoParquet spec into Parquet completely, or it might end up creating a new spec that is not compatible with GeoParquet?...

> I wonder if purely informative metadata really needs to be represented as Thrift types. When we define [canonical extension types](https://arrow.apache.org/docs/format/CanonicalExtensions.html#) in Arrow, metadata is generally serialized as a standalone...

> Another thing that comes up frequently is where to put a spatial index (rtree) I thought this can be something similar to the page index or bloom filter in...

@paleolimbot I'm happy to see the fast evolution of GeoParquet specs. I don't think the addition of geometry type aims to replace or deprecate something from GeoParquet. Instead, GeoParquet can...

@jorisvandenbossche I think your concern makes sense. It should be a bug if parquet-cpp fails due to unknown logical type and we need to fix that. I also have concern...

I think I have collected sufficient comments and suggestions to this proposal and have modified it with following changes: 1. Removed explicit geo-specific metadata as much as possible and added...

As the discussion is getting mature, I'd like to seek opinions from parquet community. Sorry to bother but we need to be serious about format change. cc @emkornfield @gszadovszky @julienledem...

I have just updated the PR with following changes: - Commented out S2Index, H3Index and native single-geometry encodings. Leave them here to demonstrate possible future extension. - Added a custom...