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learn-build-service-prod merged 5 commits into from
Dec 29, 2025
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Repo sync for protected branch #2812

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urishapira Dec 29, 2025
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Merge branch 'master' of https://github.com/urishapira/dataexplorer-d…
urishapira Dec 29, 2025
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Merge pull request #7286 from urishapira/external-tables-star-limitation
prmerger-automator[bot] Dec 29, 2025
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Merge pull request #7288 from MicrosoftDocs/main
learn-build-service-prod[bot] Dec 29, 2025
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Merging changes synced from https://github.com/MicrosoftDocs/dataexpl…
Dec 29, 2025
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2 changes: 1 addition & 1 deletion data-explorer/kusto/query/schema-entities/external-tables.md
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Expand Up @@ -47,7 +47,7 @@ To accelerate queries over external delta tables, see [Query acceleration policy
> [!NOTE]
>
> * The maximum limit of external tables per database is 1,000.
> * External table names are case-sensitive, and can't overlap with Kusto table names. For more information, see [Identifier naming rules](entity-names.md#identifier-naming-rules).
> * External table names are case-sensitive, and can't overlap with Kusto table names. Column names must also follow Kusto identifier naming rules; tables that contain an asterisk (`*`) in any column name aren't supported, because `*` is a reserved character in Kusto. For more information, see [Identifier naming rules](entity-names.md#identifier-naming-rules).
> * Azure Data Explorer supports [export](../../management/data-export/export-data-to-an-external-table.md) and [continuous export](../../management/data-export/continuous-data-export.md) to an external table.
> * [Data purge](../../concepts/data-purge.md) isn't applied on external tables. Records are never deleted from external tables.
> * [Row level security policy](../../management/row-level-security-policy.md) can't be configured on external tables.