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bug(bigtable): Performance regression in ReadRowsQuery.add_range #18708

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#18706
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bug(bigtable): Performance regression in ReadRowsQuery.add_range#18708
#18706
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parthea
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priority: p1Important issue which blocks shipping the next release. Will be fixed prior to next release.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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@parthea
parthea
opened on Oct 15, 2026

google-cloud-bigtable 2.46.0 and newer(https://pypi.org/project/google-cloud-bigtable/2.46.0/) has a performance regression in ReadRowsQuery.add_range caused by redundant deduplication checks. The regression was in #18196 and released in #18368.

Fix is in progress in #18706

Activity

  1. parthea
    self-assigned this
    on Oct 15, 2026
  2. parthea
    added
    priority: p1Important issue which blocks shipping the next release. Will be fixed prior to next release.
    type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.
    and removed
    priority: p1Important issue which blocks shipping the next release. Will be fixed prior to next release.
    on Oct 15, 2026
  3. daniel-sanche
    closed this as completedin #18706on Oct 20, 2026
  4. renovate-bot
    added a commit that references this issue on Oct 20, 2026

    fix(bigtable): resolve O(n^2) bottleneck in ReadRowsQuery.add_range (g…

    5ac7cc6
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priority: p1Important issue which blocks shipping the next release. Will be fixed prior to next release.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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