deniskuzZ commented on code in PR #4131:
URL: https://github.com/apache/hive/pull/4131#discussion_r1149016455
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java:
##########
@@ -349,6 +365,96 @@ public Map<String, String> getBasicStatistics(Partish
partish) {
return stats;
}
+
+ @Override
+ public boolean canSetColStatistics() {
+ String statsSource = HiveConf.getVar(conf,
HiveConf.ConfVars.HIVE_USE_STATS_FROM).toLowerCase();
+ return statsSource.equals(PUFFIN);
+ }
+
+ @Override
+ public boolean
canProvideColStatistics(org.apache.hadoop.hive.ql.metadata.Table tbl) {
+
+ org.apache.hadoop.hive.ql.metadata.Table hmsTable = tbl;
+ TableDesc tableDesc = Utilities.getTableDesc(hmsTable);
+ Table table = Catalogs.loadTable(conf, tableDesc.getProperties());
+ if (table.currentSnapshot() != null) {
+ String statsSource = HiveConf.getVar(conf,
HiveConf.ConfVars.HIVE_COL_STATS_SOURCE).toLowerCase();
+ String statsPath = table.location() + STATS + table.name() +
table.currentSnapshot().snapshotId();
+ if (statsSource.equals(PUFFIN)) {
+ try (FileSystem fs = new Path(table.location()).getFileSystem(conf)) {
+ if (fs.exists(new Path(statsPath))) {
+ return true;
+ }
+ } catch (IOException e) {
+ LOG.warn(e.getMessage());
+ }
+ }
+ }
+ return false;
+ }
+
+ @Override
+ public List<ColumnStatisticsObj>
getColStatistics(org.apache.hadoop.hive.ql.metadata.Table tbl) {
+
+ org.apache.hadoop.hive.ql.metadata.Table hmsTable = tbl;
Review Comment:
why is this needed?
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