voonhous commented on code in PR #18062:
URL: https://github.com/apache/hudi/pull/18062#discussion_r2945295151
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hudi-client/hudi-spark-client/src/main/java/org/apache/hudi/io/storage/row/HoodieRowParquetWriteSupport.java:
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@@ -139,21 +162,118 @@ public HoodieRowParquetWriteSupport(Configuration conf,
StructType structType, O
HoodieSchema parsedSchema = HoodieSchema.parse(schemaString);
return HoodieSchemaUtils.addMetadataFields(parsedSchema,
config.getBooleanOrDefault(ALLOW_OPERATION_METADATA_FIELD));
});
+ // Generate shredded schema if there are shredded Variant columns
+ this.shreddedSchema = generateShreddedSchema(structType, schema);
ParquetWriteSupport.setSchema(structType, hadoopConf);
Review Comment:
I used spark to write a shredded parquet and this is the output:
<img width="1129" height="1397" alt="image"
src="https://github.com/user-attachments/assets/1140a78a-9cc1-4452-b0ce-5bfda7f30700";
/>
unshredded is written to the `org.apache.spark.sql.parquet.row.metadata`
key, but the schema stored in the thrift format is shredded.
Since this is a config-only PR, let's address this in the next stacked PR to
ensure that we are inline with spark.
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