Sun Shun created FLINK-29527: -------------------------------- Summary: Make unknownFieldsIndices work for single ParquetReader Key: FLINK-29527 URL: https://issues.apache.org/jira/browse/FLINK-29527 Project: Flink Issue Type: Bug Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile) Affects Versions: 1.16.0 Reporter: Sun Shun
Currently, from the improvement [[FLINK-23715], Flink use a collection named `unknownFieldsIndices` to track the nonexistent fields, and it is kept inside the `ParquetVectorizedInputFormat`, and applied to all parquet files under given path. However, some fields may only be nonexistent in some of the historical parquet files, while exist in latest ones. And based on `unknownFieldsIndices`, flink will always skip these fields, even thought they are existing in the later parquets. As a result, the value of these fields will become empty when they are nonexistent in some historical parquet files. -- This message was sent by Atlassian Jira (v8.20.10#820010)