rdblue commented on code in PR #9125:
URL: https://github.com/apache/iceberg/pull/9125#discussion_r1402518409


##########
format/spec.md:
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@@ -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

Review Comment:
   Why do we need this? I don't think you should delete based on floating point 
values since there are so many ways for it to go wrong. Maybe we should 
disallow deleting by floating points instead of clarifying this?



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