danny0405 commented on code in PR #18384:
URL: https://github.com/apache/hudi/pull/18384#discussion_r2992269166
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hudi-client/hudi-spark-client/src/main/java/org/apache/hudi/io/storage/row/HoodieRowCreateHandle.java:
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@@ -176,15 +178,16 @@ private void writeRow(InternalRow row) {
// over again)
UTF8String[] metaFields = new UTF8String[5];
UTF8String recordKey =
row.getUTF8String(HoodieRecord.RECORD_KEY_META_FIELD_ORD);
- metaFields[3] =
row.getUTF8String(HoodieRecord.PARTITION_PATH_META_FIELD_ORD);
- // This is the only meta-field that is generated dynamically, hence
conversion b/w
- // [[String]] and [[UTF8String]] is unavoidable if
preserveHoodieMetadata is false
- metaFields[1] = shouldPreserveHoodieMetadata ?
row.getUTF8String(HoodieRecord.COMMIT_SEQNO_METADATA_FIELD_ORD)
- :
UTF8String.fromString(seqIdGenerator.apply(GLOBAL_SEQ_NO.getAndIncrement()));
- metaFields[0] = shouldPreserveHoodieMetadata ?
row.getUTF8String(HoodieRecord.COMMIT_TIME_METADATA_FIELD_ORD)
- : commitTime;
- metaFields[2] = recordKey;
- metaFields[4] = fileName;
+ metaFields[0] = populateField[0]
+ ? (shouldPreserveHoodieMetadata ?
row.getUTF8String(HoodieRecord.COMMIT_TIME_METADATA_FIELD_ORD) : commitTime)
+ : null;
+ metaFields[1] = populateField[1]
+ ? (shouldPreserveHoodieMetadata ?
row.getUTF8String(HoodieRecord.COMMIT_SEQNO_METADATA_FIELD_ORD)
+ :
UTF8String.fromString(seqIdGenerator.apply(GLOBAL_SEQ_NO.getAndIncrement())))
+ : null;
+ metaFields[2] = populateField[2] ? recordKey : null;
+ metaFields[3] = populateField[3] ?
row.getUTF8String(HoodieRecord.PARTITION_PATH_META_FIELD_ORD) : null;
+ metaFields[4] = populateField[4] ? fileName : null;
Review Comment:
So the metadata fields are still in the table schema, it's just not
populated selectively.
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