Fix delta external table kind detection#162
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ashleyvansp merged 3 commits intomainfrom Apr 10, 2026
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The KQL case expression compared tolower(TableType) against "Delta" (capitalized), which never matches since tolower() produces "delta". This caused all delta external tables to be incorrectly loaded as kind=storage. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
Fixes delta external table kind detection in the Kusto external table bulk loader so delta tables are not incorrectly classified as kind=storage.
Changes:
- Update the KQL
case(...)expression to comparetolower(TableType)against"delta"(lowercase) so delta table kind is detected correctly.
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| File | Description |
|---|---|
KustoSchemaTools/Parser/KustoLoader/KustoExternalTableBulkLoader.cs |
Fixes delta kind detection in the external table loading KQL. |
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KustoSchemaTools/Parser/KustoLoader/KustoExternalTableBulkLoader.cs
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…er.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
sdseaton
approved these changes
Apr 10, 2026
alex-slynko
approved these changes
Apr 10, 2026
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The KQL case expression compared
tolower(TableType)against "Delta" (capitalized), which never matches sincetolower()produces "delta". This caused all delta external tables to be incorrectly loaded askind=storage.cc https://github.com/github/data/issues/11972