jayzhan211 commented on code in PR #10560:
URL: https://github.com/apache/datafusion/pull/10560#discussion_r1605052852
##########
datafusion/functions-aggregate/src/macros.rs:
##########
@@ -48,49 +48,98 @@ macro_rules! make_udaf_expr_and_func {
None,
))
}
+
+ create_builder!(
+ $EXPR_FN,
+ $($arg)*,
+ $DOC,
+ $AGGREGATE_UDF_FN
+ );
+
create_func!($UDAF, $AGGREGATE_UDF_FN);
};
- ($UDAF:ty, $EXPR_FN:ident, $($arg:ident)*, $distinct:ident, $DOC:expr,
$AGGREGATE_UDF_FN:ident) => {
Review Comment:
I plan to introduce another macro for distinct, so we have `count_distinct`,
`count_distinct_builder` expr::fn.
I change to `order_by` because `first_value` needs it. Also, I change the
expression for `first_value` to single expression, since it does not expect
variadic args.
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