[ https://issues.apache.org/jira/browse/SPARK-16672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun updated SPARK-16672: ---------------------------------- Component/s: SQL > SQLBuilder should not raise exceptions on EXISTS queries > -------------------------------------------------------- > > Key: SPARK-16672 > URL: https://issues.apache.org/jira/browse/SPARK-16672 > Project: Spark > Issue Type: Bug > Components: SQL > Reporter: Dongjoon Hyun > Assignee: Dongjoon Hyun > Priority: Minor > Fix For: 2.0.1, 2.1.0 > > > Currently, `SQLBuilder` raises `empty.reduceLeft` exceptions on > **unoptimized** `EXISTS` queries. We had better prevent this. > {code} > scala> sql("CREATE TABLE t1(a int)") > scala> val df = sql("select * from t1 b where exists (select * from t1 a)") > scala> new org.apache.spark.sql.catalyst.SQLBuilder(df).toSQL > java.lang.UnsupportedOperationException: empty.reduceLeft > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org