OvertureMaps / OvertureMaps/data

improve docs on indexing in data structures

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@danabauer is already working on this.

Since Jan 30, 2026.

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Description

I think I figured this out — they are 1-indexed! So my query should have been:

select *
from read_parquet('s3://overturemaps-us-west-2/release/2025-02-19.0/theme=addresses/type=address/*')
where
  country = 'US' and
  address_levels[1].value = 'CA'

As a side note, if anyone can point me to where the 1-indexing is documented, that would be super helpful. I'd like to understand what I'm doing a bit better 😄

Originally posted by @rmx90210 in https://github.com/OvertureMaps/data/discussions/342#discussioncomment-12334356

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