voonhous opened a new pull request, #18997:
URL: https://github.com/apache/hudi/pull/18997
…en materializing MDT records
Two per-record costs on the metadata-table read path:
- MetadataPartitionType.get(int) iterated values(), which clones the enum
constant array on every call; it runs once per record materialized from the
metadata table (RLI/SI/col-stats lookups, MDT log merges). Cache values() once
and iterate the cached array; the linear scan and IllegalArgumentException for
unknown types are unchanged.
- RECORD_INDEX.constructMetadataPayload decoded the numeric record-index
fields via Long.parseLong(x.toString()) / Integer.parseInt(...) even though
they are long/int in HoodieMetadata.avsc. Read them directly with ((Number)
x).longValue() / .intValue(), removing five String allocations and parses per
materialized RLI record. String fields keep toString().
Behavior-preserving; reconstructed records are identical. Adds an avro
write/read round-trip test over both fileId encodings.
Closes #18996
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