ygf11 commented on code in PR #4193:
URL: https://github.com/apache/arrow-datafusion/pull/4193#discussion_r1023914370
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datafusion/sql/src/planner.rs:
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@@ -5509,6 +5599,99 @@ mod tests {
assert!(logical_plan("SELECT \"1\"").is_err());
}
+ #[test]
+ fn test_constant_expr_eq_join() {
+ let sql = "SELECT id, order_id \
+ FROM person \
+ INNER JOIN orders \
+ ON person.id = 10";
+
+ let expected = "Projection: person.id, orders.order_id\
+ \n Filter: person.id = Int64(10)\
+ \n CrossJoin:\
+ \n TableScan: person\
+ \n TableScan: orders";
+ quick_test(sql, expected);
+ }
+
+ #[test]
+ fn test_right_left_expr_eq_join() {
+ let sql = "SELECT id, order_id \
+ FROM person \
+ INNER JOIN orders \
+ ON orders.customer_id * 2 = person.id + 10";
+
+ let expected = "Projection: person.id, orders.order_id\
+ \n Inner Join: person.id + Int64(10) = orders.customer_id * Int64(2)\
+ \n Projection: person.id, person.first_name, person.last_name,
person.age, person.state, person.salary, person.birth_date, person.😀, person.id
+ Int64(10)\
Review Comment:
> I do not see you have logic to trim the temp projected columns.
Yes, for `select *`, the final result will contains the additional columns.
Do you means we need to add a new projection to trim the temp projected
columns?
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