Yuming Wang created SPARK-22497: ----------------------------------- Summary: Reuse project Key: SPARK-22497 URL: https://issues.apache.org/jira/browse/SPARK-22497 Project: Spark Issue Type: Sub-task Components: SQL Affects Versions: 2.3.0 Reporter: Yuming Wang
The below SQL will scan {{table1}} twice. It can reuse the first Project. {code:sql} with p1 as (select * from table1 where key < 100), s1 as (SELECT key, count(*) FROM p1 group by key), s2 as (SELECT key, count(*) FROM p1 where key > -100 group by key) select s1.* from s1 join s2 on s1.key= s2.key {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org