rdblue commented on issue #627: Update indexing to handle nested lists URL: https://github.com/apache/incubator-iceberg/pull/627#issuecomment-553190551 @chenjunjiedada, the problem in that commit was that not all of the visitor methods return a non-null map, so calling `size` on child results could fail. All we need to do is to iterate through the list to index the children, which is why we now use `Lists.newArrayList`. Since we also have to do something to consume the output, we call `size` on that list.
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