tarun11Mavani commented on code in PR #18643:
URL: https://github.com/apache/pinot/pull/18643#discussion_r3503466911
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pinot-segment-local/src/main/java/org/apache/pinot/segment/local/indexsegment/mutable/MutableSegmentImpl.java:
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@@ -1708,6 +1749,11 @@ private class IndexContainer implements Closeable {
}
DataSource toDataSource() {
+ if (_fieldSpec.getDataType() == DataType.OPEN_STRUCT) {
Review Comment:
Good catch. Added a `Preconditions.checkState` guard — OPEN_STRUCT without
its index is unusable (no forward index, no child columns), so it now fails
fast with a clear message instead of NPE-ing at query time.
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