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[python] Parallelize fallback BLOB reads#8620

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discivigour wants to merge 3 commits into
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feat/blobPara
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[python] Parallelize fallback BLOB reads#8620
discivigour wants to merge 3 commits into
masterfrom
feat/blobPara

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@discivigour

@discivigour discivigour commented Jul 14, 2026

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Purpose

Parallelize BLOB materialization in BlobFallbackBatchReader when blob_parallelism is greater than 1.

Keep candidate BLOBs lazy until fallback selects the newest non-placeholder version, propagate blob_parallelism through data-evolution reads, and preserve descriptor-only behavior without materializing BLOB bytes.

Tests

  • test_blob_fallback_batch_reader_materializes_selected_values_in_parallel

umi added 2 commits July 14, 2026 17:46
# Conflicts:
#	paimon-python/pypaimon/read/reader/concat_batch_reader.py
@discivigour discivigour marked this pull request as ready for review July 14, 2026 10:25

@JingsongLi JingsongLi left a comment

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+1

@JingsongLi

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@discivigour Please resolve conflicts.

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2 participants