difin commented on code in PR #5792:
URL: https://github.com/apache/hive/pull/5792#discussion_r2096690629
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/compaction/IcebergQueryCompactor.java:
##########
@@ -96,31 +127,46 @@ public boolean run(CompactorContext context) throws
IOException, HiveException,
throw new HiveException(ErrorMsg.COMPACTION_NO_PARTITION);
}
} else {
- long partitionHash = IcebergTableUtil.getPartitionHash(icebergTable,
partSpec);
+ HiveConf.setBoolVar(conf, ConfVars.HIVE_CONVERT_JOIN, false);
+ conf.setBoolVar(ConfVars.HIVE_VECTORIZATION_ENABLED, false);
HiveConf.setVar(conf, ConfVars.REWRITE_POLICY,
RewritePolicy.PARTITION.name());
- conf.set(IcebergCompactionService.PARTITION_PATH, new
Path(partSpec).toString());
+ conf.set(IcebergCompactionService.PARTITION_PATH, new
Path(ci.partName).toString());
- Map<String, String> partSpecMap = new LinkedHashMap<>();
- Warehouse.makeSpecFromName(partSpecMap, new Path(partSpec), null);
+ int specId = IcebergTableUtil.getPartitionSpecId(icebergTable,
ci.partName);
+ String partitionPredicate = buildPartitionPredicate(ci, icebergTable);
- compactionQuery = String.format("insert overwrite table %1$s select *
from %1$s where %2$s=%3$d " +
- "and %4$s is not null %5$s %6$s", compactTableName,
VirtualColumn.PARTITION_HASH.getName(), partitionHash,
- VirtualColumn.FILE_PATH.getName(), fileSizePredicate == null ? "" :
"and " + fileSizePredicate, orderBy);
+ compactionQuery = String.format("INSERT OVERWRITE TABLE %1$s SELECT *
FROM %1$s WHERE %2$s IN " +
+ "(SELECT FILE_PATH FROM %1$s.FILES WHERE %3$s AND SPEC_ID = %7$d)
AND %6$s = %7$d %4$s %5$s",
+ compactTableName, VirtualColumn.FILE_PATH.getName(), partitionPredicate,
+ fileSizePredicate == null ? "" : "AND " + fileSizePredicate, orderBy,
+ VirtualColumn.PARTITION_SPEC_ID.getName(), specId);
}
+ return compactionQuery;
+ }
- SessionState sessionState = setupQueryCompactionSession(conf, ci,
tblProperties);
- String compactionTarget = "table " +
HiveUtils.unparseIdentifier(compactTableName) +
- (partSpec != null ? ", partition " +
HiveUtils.unparseIdentifier(partSpec) : "");
+ private String buildPartitionPredicate(CompactionInfo ci, Table
icebergTable) {
+ Map<String, String> partSpecMap = new LinkedHashMap<>();
+ Warehouse.makeSpecFromName(partSpecMap, new Path(ci.partName), null);
- try {
- DriverUtils.runOnDriver(conf, sessionState, compactionQuery);
- LOG.info("Completed compaction for {}", compactionTarget);
- return true;
- } catch (HiveException e) {
- LOG.error("Failed compacting {}", compactionTarget, e);
- throw e;
- } finally {
- sessionState.setCompaction(false);
- }
+ Map<String, PartitionField> partitionFieldMap =
IcebergTableUtil.getPartitionFields(icebergTable, false)
+ .stream().collect(Collectors.toMap(PartitionField::name,
Function.identity()));
+
+ Types.StructType partitionType = Partitioning.partitionType(icebergTable);
Review Comment:
`Partitioning.partitionType(icebergTable)` returns all partition fields,
from all partition specs, which is needed for us, but `getPartitionSpec` will
return only one spec, it is not suitable. I changed the method
`getPartitionSpecId` to return `PartitionSpec` to make it more generic for
reuse, but didn't replace `partitionType` and `fields` parts.
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