wzx140 commented on code in PR #6745:
URL: https://github.com/apache/hudi/pull/6745#discussion_r982426959
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hudi-client/hudi-spark-client/src/main/java/org/apache/hudi/io/storage/HoodieSparkParquetStreamWriter.java:
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@@ -40,6 +40,7 @@ public class HoodieSparkParquetStreamWriter implements
HoodieSparkFileWriter, Au
public HoodieSparkParquetStreamWriter(FSDataOutputStream outputStream,
HoodieRowParquetConfig parquetConfig) throws IOException {
this.writeSupport = parquetConfig.getWriteSupport();
+ this.writeSupport.enableLegacyFormat();
Review Comment:
If we use HoodieAvroRecord to write parquetLog, it will write with
AvroWriteSupport#"parquet.avro.write-old-list-structure"=true. In order to be
compatible, We should also use HoodieSparkRecord write parquetLog with legency
format. So that we can use HoodieAvroRecord to read the parquet log which
written by HoodieSparkRecord.
```
// Standard mode:
//
// <list-repetition> group <name> (LIST) {
// repeated group list {
// ^~~~ repeatedGroupName
// <element-repetition> <element-type> element;
// ^~~~~~~
elementFieldName
// }
// }
// Legacy mode, with non-nullable elements:
//
// <list-repetition> group <name> (LIST) {
// repeated <element-type> array;
// ^~~~~ repeatedFieldName
// }
```
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