mqliang commented on a change in pull request #6710:
URL: https://github.com/apache/incubator-pinot/pull/6710#discussion_r604531296
##########
File path:
pinot-common/src/main/java/org/apache/pinot/common/utils/DataTable.java
##########
@@ -80,4 +85,87 @@
double[] getDoubleArray(int rowId, int colId);
String[] getStringArray(int rowId, int colId);
+
+ /* The MetadataKeys is used in V3, where we present metadata as
Map<MetadataKeys, String>
+ * ATTENTION:
+ * - Don't change existing keys.
+ * - Don't remove existing keys.
+ * - Always add new keys to the end.
+ * Otherwise, backward compatibility will be broken.
+ */
+ enum MetadataKeys {
+ UNKNOWN("unknown"),
+ TABLE("table"), // NOTE: this key is only used in PrioritySchedulerTest
+ EXCEPTION("Exception"),
+ NUM_DOCS_SCANNED("numDocsScanned"),
+ NUM_ENTRIES_SCANNED_IN_FILTER("numEntriesScannedInFilter"),
+ NUM_ENTRIES_SCANNED_POST_FILTER("numEntriesScannedPostFilter"),
+ NUM_SEGMENTS_QUERIED("numSegmentsQueried"),
+ NUM_SEGMENTS_PROCESSED("numSegmentsProcessed"),
+ NUM_SEGMENTS_MATCHED("numSegmentsMatched"),
+ NUM_CONSUMING_SEGMENTS_PROCESSED("numConsumingSegmentsProcessed"),
+ MIN_CONSUMING_FRESHNESS_TIME_MS("minConsumingFreshnessTimeMs"),
+ TOTAL_DOCS("totalDocs"),
+ NUM_GROUPS_LIMIT_REACHED("numGroupsLimitReached"),
+ TIME_USED_MS("timeUsedMs"),
+ TRACE_INFO("traceInfo"),
+ REQUEST_ID("requestId"),
+ NUM_RESIZES("numResizes"),
+ RESIZE_TIME_MS("resizeTimeMs"),
+ THREAD_CPU_TIME_NS("threadCpuTimeNs"),
+ ;
Review comment:
done
##########
File path:
pinot-common/src/main/java/org/apache/pinot/common/utils/DataTable.java
##########
@@ -80,4 +85,87 @@
double[] getDoubleArray(int rowId, int colId);
String[] getStringArray(int rowId, int colId);
+
+ /* The MetadataKeys is used in V3, where we present metadata as
Map<MetadataKeys, String>
+ * ATTENTION:
+ * - Don't change existing keys.
+ * - Don't remove existing keys.
+ * - Always add new keys to the end.
+ * Otherwise, backward compatibility will be broken.
+ */
+ enum MetadataKeys {
Review comment:
done
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