dengzhhu653 commented on code in PR #5578:
URL: https://github.com/apache/hive/pull/5578#discussion_r1886130504
##########
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HMSHandler.java:
##########
@@ -7420,6 +7420,64 @@ public boolean delete_partition_column_statistics(String
dbName, String tableNam
return ret;
}
+ @Override
+ public boolean
delete_partition_column_statistics_req(DeletePartitionColumnStatisticsRequest
req) throws TException {
+ String dbName = req.getDb_name();
+ String tableName = req.getTbl_name();
+ List<String> colNames = req.getCol_names();
+ String partName = req.getPart_name();
+ String engine = req.getEngine();
+ dbName = dbName.toLowerCase();
+ String[] parsedDbName = parseDbName(dbName, conf);
+ tableName = tableName.toLowerCase();
+ if (colNames != null) {
+ for (String colName : colNames) {
+ colName = colName.toLowerCase();
+ startFunction("delete_column_statistics_by_partition",": table=" +
+ TableName.getQualified(parsedDbName[CAT_NAME],
parsedDbName[DB_NAME], tableName) +
+ " partition=" + partName + " column=" + colName);
+ }
+ }
+ boolean ret = false, committed = false;
+
+ getMS().openTransaction();
+ try {
+ List<String> partVals = getPartValsFromName(getMS(),
parsedDbName[CAT_NAME], parsedDbName[DB_NAME], tableName, partName);
+ Table table = getMS().getTable(parsedDbName[CAT_NAME],
parsedDbName[DB_NAME], tableName);
+ // This API looks unused; if it were used we'd need to update stats
state and write ID.
+ // We cannot just randomly nuke some txn stats.
+ if (TxnUtils.isTransactionalTable(table)) {
+ throw new MetaException("Cannot delete stats via this API for a
transactional table");
+ }
+
+ ret =
getMS().deletePartitionMultiColumnStatistics(parsedDbName[CAT_NAME],
parsedDbName[DB_NAME], tableName,
+ partName, partVals, colNames, engine);
+ if (ret && colNames != null) {
+ for (String colName : colNames) {
+ if (transactionalListeners != null &&
!transactionalListeners.isEmpty()) {
+ MetaStoreListenerNotifier.notifyEvent(transactionalListeners,
+ EventType.DELETE_PARTITION_COLUMN_STAT,
+ new DeletePartitionColumnStatEvent(parsedDbName[CAT_NAME],
parsedDbName[DB_NAME], tableName,
+ partName, partVals, colName, engine, this));
+ }
+ if (!listeners.isEmpty()) {
Review Comment:
should this call be outside of the `transaction`? why do we notify the
listener just on success and `colNames` is not null, will some events be
missing?
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