shizy818 commented on code in PR #17591:
URL: https://github.com/apache/iotdb/pull/17591#discussion_r3300714505
##########
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/schemaengine/schemaregion/utils/ResourceByPathUtils.java:
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@@ -419,6 +471,25 @@ public ReadOnlyMemChunk getReadOnlyMemChunkFromMemTable(
context, columnIndexList, getMeasurementSchema(),
alignedTvListQueryMap, deletionList);
}
+ /**
+ * This method is called from prepareTvListMapForQuery with
tvList.lockQueryList() held, ensuring
+ * thread-safe access to queryContextSet.
+ *
+ * @param tvList the TVList to get accessed columns for
+ * @return set of accessed column indices, or empty set if no columns are
tracked
+ */
+ @Override
+ protected Set<Integer> getAccessedColumnsForQuery(TVList tvList) {
+ Set<Integer> accessedColumns = new HashSet<>();
+ for (QueryContext queryContext : tvList.getQueryContextSet()) {
+ if (queryContext instanceof FragmentInstanceContext) {
Review Comment:
Done
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