Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/22880#discussion_r232489624 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowConverter.scala --- @@ -130,8 +130,8 @@ private[parquet] class ParquetRowConverter( extends ParquetGroupConverter(updater) with Logging { assert( - parquetType.getFieldCount == catalystType.length, - s"""Field counts of the Parquet schema and the Catalyst schema don't match: + parquetType.getFieldCount <= catalystType.length, + s"""Field count of the Parquet schema is greater than the field count of the Catalyst schema: --- End diff -- Can we assert this only when this pruning is enabled?
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