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Posted to dev@parquet.apache.org by GitBox <gi...@apache.org> on 2022/08/29 08:57:31 UTC

[GitHub] [parquet-format] pitrou commented on a diff in pull request #184: PARQUET-758: Add Float16/Half-float logical type

pitrou commented on code in PR #184:
URL: https://github.com/apache/parquet-format/pull/184#discussion_r957060962


##########
LogicalTypes.md:
##########
@@ -245,6 +245,18 @@ comparison.
 To support compatibility with older readers, implementations of parquet-format should
 write `DecimalType` precision and scale into the corresponding SchemaElement field in metadata.
 
+### Half-precision floating-point
+
+Also known as `float16`. Used in contexts where precision is traded off for performance and efficient storage.

Review Comment:
   ```suggestion
   ### FLOAT16
   
   The `FLOAT16` annotation represents IEEE 16-bit half-precision floating-point numbers .
   Used in contexts where precision is traded off for smaller footprint and potentially better performance.
   ```



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