rdblue commented on code in PR #9125:
URL: https://github.com/apache/iceberg/pull/9125#discussion_r1402519684


##########
format/spec.md:
##########
@@ -607,6 +611,8 @@ Notes:
 
 1. An alternative, *strict projection*, creates a partition predicate that 
will match a file if all of the rows in the file must match the scan predicate. 
These projections are used to calculate the residual predicates for each file 
in a scan.
 2. For example, if `file_a` has rows with `id` between 1 and 10 and a delete 
file contains rows with `id` between 1 and 4, a scan for `id = 9` may ignore 
the delete file because none of the deletes can match a row that will be 
selected.
+3. Floating point partition values are considered equal if there IEEE 754 
floating-point “single format” bit layout
+are equal (the equivelant of calling `Float.floatToIntBits`` in Java).  The 
avro specification encodes all floating point values in this format.

Review Comment:
   I don't understand the comment about Avro. What is the relevance here? All 
serialization formats should preserve the bits they are passed.



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