jayzhan211 commented on code in PR #7995:
URL: https://github.com/apache/arrow-datafusion/pull/7995#discussion_r1390053054
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datafusion/optimizer/src/analyzer/type_coercion.rs:
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@@ -579,26 +580,51 @@ fn coerce_arguments_for_fun(
.collect::<Result<Vec<_>>>()?;
}
+ // Converting `Null` to Int32(None) to avoid handling `Null` in array
functions
Review Comment:
Actually converting null is not only a special case for MakeArray. I think
we need to extend this to other Array function too.
For example, array_append(make_array(1,null,3), null);
We not only need conversion in make_array but also conversion in
array_append.
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