Always use StringViewArray as output of substr
#14498
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+64
−68
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Which issue does this PR close?
Closes #12338
Rationale for this change
Generate
StringViewArraywhatever input type is for efficiency.What changes are included in this PR?
substr, return type is alwaysUtf8View.datafusion/sqllogictest/test_files/tpch/plans/q22.slt.part.Are these changes tested?
Yes.
Are there any user-facing changes?
I'm not sure, the return type of substr is fixed to
Utf8Viewnow.