marton-bod commented on a change in pull request #2178:
URL: https://github.com/apache/hive/pull/2178#discussion_r613126039
##########
File path:
iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergOutputCommitter.java
##########
@@ -143,19 +145,30 @@ public void commitJob(JobContext originalContext) throws
IOException {
LOG.info("Committing job has started for table: {}, using location: {}",
table,
generateJobLocation(conf, jobContext.getJobID()));
- FileIO io = HiveIcebergStorageHandler.io(jobContext.getJobConf());
- List<DataFile> dataFiles = dataFiles(jobContext, io, true);
-
- if (dataFiles.size() > 0) {
+ List<DataFile> dataFiles = dataFiles(jobContext, table.io(), true);
+
+ boolean isOverwrite = conf.getBoolean(InputFormatConfig.IS_OVERWRITE,
false);
+ if (isOverwrite) {
+ // Replacing affected partitions (or whole table) since it's an insert
overwrite
+ // We do the replacement even for 0 data files (i.e. empty source)
+ ReplacePartitions overwrite = table.newReplacePartitions();
+ dataFiles.forEach(overwrite::addFile);
+ overwrite.commit();
Review comment:
For unpartitioned table, we still want to commit because the semantics
is that the empty result set should clear the table, that's why I kept the
commit even for 0 data files
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