Jackie-Jiang commented on code in PR #12464:
URL: https://github.com/apache/pinot/pull/12464#discussion_r1500266732
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java:
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@@ -490,6 +493,19 @@ public static void validateIngestionConfig(TableConfig
tableConfig, @Nullable Sc
Preconditions.checkState(new
HashSet<>(schema.getMetricNames()).equals(aggregationColumns),
"all metric columns must be aggregated");
}
+
+ // This is required by
MutableSegmentImpl.enableMetricsAggregationIfPossible().
+ // That code will disable ingestion aggregation if all metrics aren't
noDictionaryColumns.
+ // But if you do that after the table is already created, all future
aggregations will
+ // just be the default value.
+ Map<String, FieldIndexConfigs> fieldIndexConfigsMap =
FieldIndexConfigsUtil.createIndexConfigsByColName(
Review Comment:
@gortiz Is there a way to only extract the `DictionaryIndexConfig` for all
columns? Here we just need to find all the no-dictionary columns.
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