difin commented on code in PR #6789:
URL: https://github.com/apache/hive/pull/6789#discussion_r4300410648
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveTableUtil.java:
##########
@@ -259,6 +261,71 @@ public static Table deserializeTable(Configuration config,
String name) {
return table;
}
+ /**
+ * Resolves the Iceberg {@link Table} for split generation ({@code
IcebergInputFormat#getSplits}).
+ *
+ * <p>Serialized tables ({@link SerializableTable}) only carry a metadata
snapshot and produce
+ * {@link org.apache.iceberg.DataTableScan} (client-side manifest planning).
When REST catalog
+ * server-side scan planning is enabled, reload the live table from the
catalog so
+ * {@code table.newScan()} returns {@link
org.apache.iceberg.rest.RESTTableScan} and issues
+ * {@code POST /plan} on the REST server.
+ *
+ * <p>Intra-transaction read-after-write ({@link
InputFormatConfig#TABLE_METADATA_LOCATION}) still
+ * uses the deserialized snapshot so uncommitted metadata is visible.
+ */
+ public static Table resolveTableForScanPlanning(Configuration conf, String
tableIdentifier) {
+ if (shouldReloadForServerSideScanPlanning(conf)) {
+ Table table = Catalogs.loadTable(conf);
+ checkAndSetIoConfig(conf, table);
+ IcebergVendedCredentialUtil.applyFromJobConf(table,
resolveCatalogName(conf), conf);
+ return table;
+ }
+
+ Table table = deserializeTable(conf, tableIdentifier);
+ if (table == null) {
+ table = Catalogs.loadTable(conf);
Review Comment:
Unified credential setup: Both catalog loads now go through
`configureLoadedTable` (IO config + `applyFromJobConf`).
Kept them as separate branches in `getSplits` because the server path has to
keep the serialized table for snapshot pinning and close the catalog after
planning.
- `applyFromJobConf` is a no-op without serialized creds or the delegation
header
- credentials from the fresh `LoadTableResponse` win over the ones vended at
compile time.
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