alamb commented on code in PR #2344:
URL: https://github.com/apache/arrow-datafusion/pull/2344#discussion_r859653759
##########
datafusion/core/src/sql/planner.rs:
##########
@@ -4182,4 +4264,36 @@ mod tests {
\n TableScan: test projection=None";
quick_test(sql, expected);
}
+
+ #[test]
+ fn exists_subquery() {
+ let sql = "SELECT id FROM person p WHERE EXISTS \
+ (SELECT first_name FROM person \
+ WHERE last_name = p.last_name \
+ AND state = p.state)";
+
+ let expected = "Projection: #p.id\
+ \n Filter: EXISTS (Subquery: Projection: #person.first_name\
+ \n Filter: #person.last_name = #p.last_name AND #person.state =
#p.state\
+ \n TableScan: person projection=None)\
+ \n SubqueryAlias: p\
+ \n TableScan: person projection=None";
+ quick_test(sql, expected);
+ }
+
+ #[test]
+ fn exists_subquery_wildcard() {
+ let sql = "SELECT id FROM person p WHERE EXISTS \
+ (SELECT * FROM person \
+ WHERE last_name = p.last_name \
+ AND state = p.state)";
+
+ let expected = "Projection: #p.id\
+ \n Filter: EXISTS (Subquery: Projection: #person.id,
#person.first_name, #person.last_name, #person.age, #person.state,
#person.salary, #person.birth_date, #person.😀\
+ \n Filter: #person.last_name = #p.last_name AND #person.state =
#p.state\
+ \n TableScan: person projection=None)\
+ \n SubqueryAlias: p\
+ \n TableScan: person projection=None";
Review Comment:
Thank you for the change. It is much easier to see what is going on now.
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