izveigor commented on code in PR #7313:
URL: https://github.com/apache/arrow-datafusion/pull/7313#discussion_r1297419229
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datafusion/physical-expr/src/array_expressions.rs:
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@@ -986,6 +986,36 @@ macro_rules! general_repeat_list {
}};
}
+/// Array_empty SQL function
+pub fn array_empty(args: &[ArrayRef]) -> Result<ArrayRef> {
Review Comment:
@Weijun-H can you please add the description of the feature in docs:
`docs/source/user-guide/expressions.md` and
`docs/source/user-guide/sql/scalar_functions.md`?
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