fix: handle Utf8View and LargeUtf8 separators in concat_ws#20361
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neilconway wants to merge 1 commit intoapache:mainfrom
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fix: handle Utf8View and LargeUtf8 separators in concat_ws#20361neilconway wants to merge 1 commit intoapache:mainfrom
neilconway wants to merge 1 commit intoapache:mainfrom
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concat_ws only handled Utf8 separators; attempting to pass a Utf8View or LargeUtf8 separator would result in a panic or internal error.
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xanderbailey
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Feb 17, 2026
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Which issue does this PR close?
Rationale for this change
concat_ws only handled Utf8 separators (despite its signature claiming otherwise). Attempting to pass a Utf8View or LargeUtf8 separator would result in a panic or internal error.
What changes are included in this PR?
Are these changes tested?
Yes. Added new test cases.
Note that we can't easily test the scalar separator case via SQL, because
simplify_concat_wscasts constant/scalar separators to Utf8. That behavior is dubious and IMO should be changed, but I'll tackle that in a subsequent PR.Are there any user-facing changes?
No, aside from a previously failing query now succeeding.