Fix ORC writer accepting empty struct that reader cannot bind - #17917
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zhang-arvin wants to merge 1 commit into
Open
Fix ORC writer accepting empty struct that reader cannot bind#17917zhang-arvin wants to merge 1 commit into
zhang-arvin wants to merge 1 commit into
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Fixes #17913: Iceberg generic ORC writer accepts a schema containing struct<> (empty struct) and writes a file, but the generic ORC reader cannot read that file with the same Iceberg schema.
Fix
Added a validation in ORCSchemaUtil.convert() to reject empty struct types at write time, since ORC does not support struct types with zero fields.