henrib commented on code in PR #13801:
URL: https://github.com/apache/iceberg/pull/13801#discussion_r2285166533
##########
api/src/main/java/org/apache/iceberg/catalog/Catalog.java:
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@@ -325,6 +326,47 @@ default boolean dropTable(TableIdentifier identifier) {
*/
Table loadTable(TableIdentifier identifier);
+ /**
+ * Computes the eTag of a given table.
+ *
+ * <p>This fetches the up-to-date eTag for a given table identifier</p>
+ *
+ * @param identifier the table identifier
+ * @return the eTag as a type 5 uuid or null if the eTag could not be
computed
+ */
+ default UUID getTableETag(TableIdentifier identifier) {
Review Comment:
Hi @gaborkaszab,
I was trying to address the comments and derive a way to compute an eTag
from the metadata location. The original PR - and I will revert to this - is
only meant to address from the HiveCatalog perspective a way to assess
staleness of a Table object from a server side perspective. The REST catalog in
Hive is embedded and to cache table objects, the initial issue and PR seems
like a reasonable ask.
Whether the same idea can be applied broadly or to other catalogs is
certainly valid but at this point, it should probably be discussed in its own
issue.
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