rdblue commented on a change in pull request #351: Provide an API to modify
records within files
URL: https://github.com/apache/incubator-iceberg/pull/351#discussion_r310828631
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File path: api/src/main/java/org/apache/iceberg/DataOperations.java
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@@ -44,6 +44,13 @@ private DataOperations() {
*/
public static final String REPLACE = "replace";
+ /**
+ * Files are removed, replaced or modified, while changing the data in the
table.
+ * <p>
+ * This operation is implemented by {@link ModifyFiles}.
+ */
+ public static final String MODIFY = "modify";
Review comment:
Files are never modified, so I think this is really an overwrite: files were
added to replace files that were deleted. The set of rows in the table changed,
unlike "replace" that implies the set of rows did not change. I think the two
are essentially the same thing, we just need to make sure it is clear that both
these uses are covered by overwrite.
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