docs: document BigQuery default-load-type feature rollout#990
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…llout Explain that the BigQuery input-mapping default is controlled by the "BigQuery Input Mapping – Default Load Type View" feature: while enabled (current state in most projects) input tables default to VIEW; disabling it in Settings → Features makes CLONE the default. Note the gradual rollout completing by July 30, 2026, after which CLONE becomes the default for all BigQuery projects. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Verdict: needs_human (risk 3/5) · profile docs
This PR introduces new product-behaviour claims and a specific rollout date that require human confirmation before shipping.
Concerns:
src/content/docs/transformations/mappings/index.md: Instruction to 'disable in Settings → Features' may not work until a separate UI change ships.src/content/docs/transformations/mappings/index.md: Specific rollout date 'July 30, 2026' is a load-bearing business claim that cannot be verified from the diff.src/content/docs/transformations/mappings/index.md: New product-behaviour claims (VIEW default, CLONE fallback logic) need product-team confirmation.
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Pull request overview
Updates the Mappings documentation to reflect the phased rollout of BigQuery’s input-mapping default load behavior and how it is controlled via a feature flag, so users understand what to expect and how to opt into CLONE earlier.
Changes:
- Replaces the previous “New default on BigQuery” note with an explanation of the BigQuery Input Mapping – Default Load Type View feature flag and its impact on defaults.
- Adds instructions for disabling the feature in Settings → Features to make
CLONEthe default immediately. - Documents the planned rollout timeline (completing by July 30, 2026) after which
CLONEbecomes the default for all BigQuery projects.
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| On BigQuery, the default input-mapping load type is controlled by the **BigQuery Input Mapping – Default Load Type View** | ||
| feature. While this feature is enabled --- the current state in most projects --- input tables default to `VIEW`, just as | ||
| before. That's perfectly fine, and nothing changes for you. |
natocTo
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Jun 25, 2026
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Jira issue(s): PROOF-XXX
Documents the rollout of the BigQuery input-mapping default load type, on the Loading type (Snowflake and BigQuery) section of the Mappings page.
Builds on the recently merged load-type documentation (CLONE/VIEW/COPY + AUTO). Reframes the "New default on BigQuery" note to match the actual phased rollout:
Changes:
VIEW— and that's fine, nothing changes for users.CLONEthe default now, disable the feature in Settings → Features.CLONEbecomes the default for everyone.Note: the "disable in Settings → Features" instruction assumes the
bigquery-default-im-viewfeature is admin-manageable from the UI. That enablement (kbc-stackscanBeManageByAdmin: true+ UI allowlist) is tracked separately and should ship together with this doc.