wgtmac commented on PR #240: URL: https://github.com/apache/parquet-format/pull/240#issuecomment-2117882885
> 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 JSON string. > > Doing so in Parquet as well would lighten the maintenance workload on the serialization format, and would also allow easier evolution of geometry metadata to support additional information. > > **Edit:** this seems to be the approach adopted [by GeoParquet](https://github.com/opengeospatial/geoparquet/blob/main/format-specs/geoparquet.md#metadata) as well. @pitrou Yes, that might be an option. Then we can perhaps use the same json string defined in the iceberg doc. @jiayuasu @szehon-ho WDYT? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
