jeffreyliu34 commented on a change in pull request #8273:
URL: https://github.com/apache/pinot/pull/8273#discussion_r826441660
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformer.java
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@@ -279,6 +295,31 @@ protected void flattenMap(GenericRow record, List<String>
columns) {
}
}
+ /**
+ * Loops through all columns and renames the column's prefix with the
corresponding replacement if the prefix matches.
+ */
+ @VisibleForTesting
+ protected void renamePrefixes(GenericRow record) {
+ if (_prefixesToRename.isEmpty()) {
+ return;
+ }
+ List<String> fields = new
ArrayList<>(record.getFieldToValueMap().keySet());
Review comment:
Ah actually, we need this list to avoid ConcurrentModificationException
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