cloud-fan commented on issue #26973: [SPARK-30323][SQL] Support filters pushdown in CSV datasource URL: https://github.com/apache/spark/pull/26973#issuecomment-573651056 I believe it's the same problem as column pruning. When we return data earlier, we may skip parsing some columns and treat a malformed record as normal. My feeling is that, we don't have a clear definition about what is a malformed record, if we don't need to parse the whole record.
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