emkornfield commented on a change in pull request #4272:
URL: https://github.com/apache/iceberg/pull/4272#discussion_r821992893
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File path: docs/common/format/spec.md
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@@ -549,7 +551,10 @@ For example, an `events` table with a timestamp column
named `ts` that is partit
Scan predicates are also used to filter data and delete files using column
bounds and counts that are stored by field id in manifests. The same filter
logic can be used for both data and delete files because both store metrics of
the rows either inserted or deleted. If metrics show that a delete file has no
rows that match a scan predicate, it may be ignored just as a data file would
be ignored [2].
-Data files that match the query filter must be read by the scan.
+Data files that match the query filter must be read by the scan. Note that for
any snapshot, all file paths
+may appear at most once across all manifest files in the snapshot. If a file
path appears more then once, the results of the scan are undefined. Reader
implementations may raise an error in this case, but are
+not required to do so.
Review comment:
I removed them.
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