alan910127 commented on code in PR #14737:
URL: https://github.com/apache/datafusion/pull/14737#discussion_r1966030422
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datafusion/sqllogictest/test_files/array.slt:
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@@ -2265,6 +2265,35 @@ select array_sort([]);
----
[]
+# test with null arguments
+# expected error:
+# DataFusion error: Error during planning: Failed to coerce arguments to
satisfy a call to 'array_sort' function: coercion from [Null] to the signature
OneOf([ArraySignature(Array { arguments: [Array], array_coercion: None }),
ArraySignature(Array { arguments: [Array, DataType(Utf8)], array_coercion: None
}), ArraySignature(Array { arguments: [Array, DataType(Utf8), DataType(Utf8)],
array_coercion: None })]) failed No function matches the given name and
argument types 'array_sort(Null)'. You might need to add explicit type casts.
+# Candidate functions:
+# array_sort(array)
+# array_sort(array, Utf8)
+# array_sort(array, Utf8, Utf8)
+query error
+select array_sort(NULL);
Review Comment:
Since the the error is defined by `ArrayFunctionArgument::Array`, changing
the behavior would change all of the array functions, is this acceptable? I
will push this for now and we can revert it if this is not desired.
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