Csaba Ringhofer created HIVE-29353:
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Summary: Add ST_GeoHash
Key: HIVE-29353
URL: https://issues.apache.org/jira/browse/HIVE-29353
Project: Hive
Issue Type: Sub-task
Reporter: Csaba Ringhofer
geohash calculation for points at given precision is very simple. For complex
geometries there are several options:
a. find a geohash where the whole shape fits, potentially decreasing precision
b. calculate geohash for a given point (e.g. center of envelope) of the shape
c. simply reject non-point geometries
postgis does a. ([link|https://postgis.net/docs/ST_GeoHash.html]) while Apache
Sedona does b.
([link|https://github.com/apache/sedona/blob/0523fbdc600d86b8088feba39db829a5dccc11d8/common/src/main/java/org/apache/sedona/common/utils/GeometryGeoHashEncoder.java#L40])
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