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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"UnionFixedSizeListWriter does not support TimeStamp*TZ","articleBody":"### Describe the enhancement requested\n\nTrying to get a `timeStampNanoTZ()` off of the `UnionFixedSizeListWriter` results in this exception:\n```\nYou tried to write a TimeStampNanoTZ type when you are using a ValueWriter of type UnionFixedSizeListWriter.\njava.lang.IllegalArgumentException: You tried to write a TimeStampNanoTZ type when you are using a ValueWriter of type UnionFixedSizeListWriter.\n\tat org.apache.arrow.vector.complex.impl.AbstractFieldWriter.fail(AbstractFieldWriter.java:1350)\n\tat org.apache.arrow.vector.complex.impl.AbstractFieldWriter.timeStampNanoTZ(AbstractFieldWriter.java:1136)\n\tat org.apache.arrow.vector.complex.impl.UnionFixedSizeListWriter.timeStampNanoTZ(UnionFixedSizeListWriter.java:68)\n```\n\nIs it possible to support this since timeStampNano() and timeStampNanoTZ() have identical payloads? (just one has the TZ string in the field schema)","author":{"url":"https://github.com/nbauernfeind","@type":"Person","name":"nbauernfeind"},"datePublished":"2025-01-22T00:10:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/552/arrow-java/issues/552"}