difin commented on code in PR #5328:
URL: https://github.com/apache/hive/pull/5328#discussion_r1688390400
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/compaction/IcebergMajorQueryCompactor.java:
##########
@@ -63,20 +63,33 @@ public boolean run(CompactorContext context) throws
IOException, HiveException,
HiveConf conf = new HiveConf(context.getConf());
String partSpec = context.getCompactionInfo().partName;
+ org.apache.hadoop.hive.ql.metadata.Table table =
Hive.get(conf).getTable(context.getTable().getDbName(),
+ context.getTable().getTableName());
+ Table icebergTable = IcebergTableUtil.getTable(conf, table.getTTable());
String compactionQuery;
if (partSpec == null) {
- HiveConf.setVar(conf, ConfVars.REWRITE_POLICY,
RewritePolicy.ALL_PARTITIONS.name());
- compactionQuery = String.format("insert overwrite table %s select * from
%<s", compactTableName);
+ if (!IcebergTableUtil.isPartitioned(icebergTable)) {
+ HiveConf.setVar(conf, ConfVars.REWRITE_POLICY,
RewritePolicy.ALL_PARTITIONS.name());
Review Comment:
For partitioned tables, starting with this PR, RewritePolicy.ALL_PARTITIONS
won’t be used anymore, because if table is partitioned it will always create
compaction request per partition and will use RewritePolicy.PARTITION for each
partition.
RewritePolicy.ALL_PARTITIONS is used now in case the table is unpartitioned
which means it compacts entire table.
Should we rename it to a proper name, like RewritePolicy.UNPARTITIONED or
RewritePolicy.FULL_TABLE?
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