MeridianMERIDIAN

H3 Hex Index

Uber H3 hierarchical hexagonal spatial index. A 15-character lowercase hexadecimal string encoding resolution (0-15) and cell position.

H3 Hex Index

geography.index.h3

Uber H3 hierarchical hexagonal spatial index. A 15-character lowercase hexadecimal string encoding resolution (0-15) and cell position.

Domain
geography
Category
index
Casts to
VARCHAR
Scope
Universal

Try it

CLI
$ finetype infer -i "8928308280fffff"
→ geography.index.h3

DuckDB

Detect
SELECT finetype('8928308280fffff');
-- → 'geography.index.h3'
Cast expression
CAST({col} AS VARCHAR)
Safe cast pipeline
-- Normalise and cast in one step
SELECT TRY_CAST(finetype_cast(my_column) AS VARCHAR) AS clean_value
FROM my_table
WHERE finetype(my_column) = 'geography.index.h3';

JSON Schema

finetype schema geography.index.h3
{
  "$id": "https://meridian.online/schemas/geography.index.h3",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Uber H3 hierarchical hexagonal spatial index. A 15-character lowercase hexadecimal string encoding resolution (0-15) and cell position.",
  "examples": [
    "8928308280fffff",
    "891f1d4c6c7ffff",
    "8a2a1072b59ffff",
    "872830828ffffff",
    "8e28308280f0e4f"
  ],
  "pattern": "^[0-9a-f]{15}$",
  "title": "H3 Hex Index",
  "type": "string",
  "x-finetype-broad-type": "VARCHAR",
  "x-finetype-transform": "CAST({col} AS VARCHAR)",
  "x-finetype-transform-ext": "h3_cell_to_lat(h3_string_to_h3({col}))"
}

Examples

8928308280fffff891f1d4c6c7ffff8a2a1072b59ffff872830828ffffff8e28308280f0e4f

Aliases

h3_indexh3_cell

Type Registry