comphead commented on code in PR #20710: URL: https://github.com/apache/datafusion/pull/20710#discussion_r2886782292
########## datafusion/sqllogictest/test_files/joins.slt: ########## @@ -5318,3 +5318,46 @@ DROP TABLE issue_20437_small; statement count 0 DROP TABLE issue_20437_large; + +# Test count(*) with right semi/anti joins returns correct row counts +# issue: https://github.com/apache/datafusion/issues/20669 + +statement ok +CREATE TABLE t1 (k INT, v INT); + +statement ok +CREATE TABLE t2 (k INT, v INT); + +statement ok +INSERT INTO t1 SELECT i AS k, i AS v FROM generate_series(1, 100) t(i); + +statement ok +INSERT INTO t2 VALUES (1, 1); + +query I +WITH t AS ( + SELECT * + FROM t1 + LEFT ANTI JOIN t2 ON t1.k = t2.k +) +SELECT count(*) +FROM t; +---- +99 + +query I +WITH t AS ( + SELECT * + FROM t1 + LEFT SEMI JOIN t2 ON t1.k = t2.k +) +SELECT count(*) +FROM t; Review Comment: double checked tests with duckDB, everything is fine -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
