alamb commented on code in PR #15079:
URL: https://github.com/apache/datafusion/pull/15079#discussion_r1986065410
##########
datafusion/sqllogictest/test_files/explain_tree.slt:
##########
@@ -519,6 +534,51 @@ physical_plan
17)│ format: arrow │
18)└───────────────────────────┘
+# Query with hash join.
+query TT
+explain select * from table1 inner join table2 on table1.int_col =
table2.int_col and table1.string_col = table2.string_col;
Review Comment:
Recommend testing outer join here:
```suggestion
explain select * from table1 outer inner join table2 on table1.int_col =
table2.int_col and table1.string_col = table2.string_col;
```
##########
datafusion/physical-plan/src/joins/hash_join.rs:
##########
@@ -669,8 +669,15 @@ impl DisplayAs for HashJoinExec {
)
}
DisplayFormatType::TreeRender => {
- // TODO: collect info
- write!(f, "")
+ let on = self
+ .on
+ .iter()
+ .map(|(c1, c2)| format!("({} = {})", c1, c2))
+ .collect::<Vec<String>>()
+ .join(", ");
+
+ writeln!(f, "join_type={:?}", self.join_type)?;
+ writeln!(f, "on=[{}]", on)
Review Comment:
I recommend
1. we remove `[` and `]`
2. don't print `join_type` if the type is `Inner`
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