houqp commented on a change in pull request #607:
URL: https://github.com/apache/arrow-datafusion/pull/607#discussion_r657577330
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File path: datafusion/src/sql/planner.rs
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@@ -2826,6 +2818,16 @@ mod tests {
quick_test(sql, expected);
}
+ #[test]
+ fn empty_over_dup_with_alias() {
+ let sql = "SELECT order_id oid, MAX(order_id) OVER () max_oid,
MAX(order_id) OVER () max_oid_dup from orders";
+ let expected = "\
+ Projection: #orders.order_id AS oid, #MAX(orders.order_id) AS max_oid,
#MAX(orders.order_id) AS max_oid_dup\
+ \n WindowAggr: windowExpr=[[MAX(#orders.order_id)]]\
Review comment:
not only the planner, the builder also does this for those who use the
dataframe apis directly ;)
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