gargvishesh commented on code in PR #15965:
URL: https://github.com/apache/druid/pull/15965#discussion_r1547166593
##########
extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java:
##########
@@ -1715,9 +1726,109 @@ private void publishSegmentsIfNeeded(
//noinspection unchecked
@SuppressWarnings("unchecked")
final Set<DataSegment> segments = (Set<DataSegment>)
queryKernel.getResultObjectForStage(finalStageId);
+
+ Function<Set<DataSegment>, Set<DataSegment>>
compactionStateAnnotateFunction = Function.identity();
+
+ boolean storeCompactionState =
QueryContext.of(task.getQuerySpec().getQuery().getContext())
+ .getBoolean(
+
Tasks.STORE_COMPACTION_STATE_KEY,
+
Tasks.DEFAULT_STORE_COMPACTION_STATE
+ );
+
+ if (!segments.isEmpty() && storeCompactionState) {
+
+ DataSourceMSQDestination destination = (DataSourceMSQDestination)
task.getQuerySpec().getDestination();
+ if (!destination.isReplaceTimeChunks()) {
+ // Only do this for replace queries, whether originating directly or
via compaction
+ log.error("storeCompactionState flag set for a non-REPLACE query
[%s]", queryDef.getQueryId());
+ } else {
+
+ DataSchema dataSchema = ((SegmentGeneratorFrameProcessorFactory)
queryKernel
+
.getStageDefinition(finalStageId).getProcessorFactory()).getDataSchema();
+
+ ShardSpec shardSpec =
segments.stream().findFirst().get().getShardSpec();
+
+ compactionStateAnnotateFunction =
prepareCompactionStateAnnotateFunction(
+ task(),
+ context.jsonMapper(),
+ dataSchema,
+ shardSpec,
+ queryDef.getQueryId()
+ );
+ }
+ }
+
log.info("Query [%s] publishing %d segments.", queryDef.getQueryId(),
segments.size());
- publishAllSegments(segments);
+ publishAllSegments(compactionStateAnnotateFunction.apply(segments));
+ }
+ }
+
+ public static Function<Set<DataSegment>, Set<DataSegment>>
prepareCompactionStateAnnotateFunction(
Review Comment:
Not used anywhere else. Made it private.
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