richardstartin commented on pull request #8101:
URL: https://github.com/apache/pinot/pull/8101#issuecomment-1027250871
Looking at `OnHeapStringDictionary`, it's much heavier than an intern table:
```java
private final String[] _unpaddedStrings;
private final Object2IntOpenHashMap<String> _unPaddedStringToIdMap;
private final String[] _paddedStrings;
```
The padded strings and string to id map don't serve much purpose on the hot
path.
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