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branch-4.0: [fix](regression) Drop view before its base tables in test_join5 #65455#65723

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branch-4.0: [fix](regression) Drop view before its base tables in test_join5 #65455#65723
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Cherry-picked from #65455

)

### What problem does this PR solve?

Issue Number: DORIS-23587

Related PR: None

Problem Summary:

`test_join5` creates the `uqv1` view on top of `uq1`, but drops `uq1`
while the view still exists. A concurrent
`information_schema.view_dependency` scan can observe this dangling view
and fail while resolving its missing base table.

This change drops `uqv1` after its last assertion and before dropping
its base tables, so the case does not expose an invalid intermediate
state to concurrently running regression suites.
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github-actions Bot requested a review from morningman as a code owner July 16, 2026 12:59
@hello-stephen

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Thank you for your contribution to Apache Doris.
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Please clearly describe your PR:

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  4. Which code was refactored and why was this part of the code refactored?
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@hello-stephen

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run buildall

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