amaliujia commented on issue #1511: [CALCITE-3393] RelStructuredTypeFlattener: improve support for functions with struct input URL: https://github.com/apache/calcite/pull/1511#issuecomment-544632093 Hi @ihuzenko > there is no need to disable flattener intentionally, because every client can simply avoid using it in their code Could you elaborate a bit more? Is there a way already can allow do not flatten struct? > Another big reason to use flattener is that rules aren't expected to handle structs and final plan may become less optimized than necessary I see. I remember rules generally don't care about types. But indeed who knows what it could break unless have a try.
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