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[python] Make BLOB I/O merge parameters configurable - #9890

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XiaoHongbo-Hope wants to merge 4 commits into
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XiaoHongbo-Hope:codex/io-range-coalesce-config
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XiaoHongbo-Hope wants to merge 4 commits into
apache:masterfrom
XiaoHongbo-Hope:codex/io-range-coalesce-config

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@XiaoHongbo-Hope XiaoHongbo-Hope commented Sep 16, 2026

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Coalesced BLOB reads use fixed 1 MiB gap and 8 MiB merge-size thresholds. Add file-io.read-coalesce.max-gap and file-io.read-coalesce.max-block catalog options to tune them. Defaults remain unchanged.

The old per-call max_gap and max_span arguments are removed; callers using them must set FileIO options instead.

Validation: 131 BLOB and 84 multimodal table tests passed; focused Flake8 and git diff --check passed.

@XiaoHongbo-Hope XiaoHongbo-Hope changed the title [python] Configure coalesced BLOB read bounds [python] Make BLOB range-read merging configurable Sep 16, 2026
@XiaoHongbo-Hope XiaoHongbo-Hope changed the title [python] Make BLOB range-read merging configurable [python] Make BLOB I/O merge parameters configurable Sep 16, 2026
@XiaoHongbo-Hope
XiaoHongbo-Hope marked this pull request as ready for review September 16, 2026 13:13
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