[ https://issues.apache.org/jira/browse/SPARK-40618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gengliang Wang resolved SPARK-40618. ------------------------------------ Fix Version/s: 3.4.0 Resolution: Fixed Issue resolved by pull request 38052 [https://github.com/apache/spark/pull/38052] > Bug in MergeScalarSubqueries rule attempting to merge nested subquery with > parent > --------------------------------------------------------------------------------- > > Key: SPARK-40618 > URL: https://issues.apache.org/jira/browse/SPARK-40618 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 3.4.0 > Reporter: Daniel > Assignee: Daniel > Priority: Major > Fix For: 3.4.0 > > > There is a bug in the `MergeScalarSubqueries` rule for queries with subquery > expressions nested inside each other, wherein the rule attempts to merge the > nested subquery with its enclosing parent subquery. The result is not a valid > plan and raises an exception in the optimizer. Here is a minimal reproducing > case: > > ``` > sql("create table test(col int) using csv") > checkAnswer(sql("select(select sum((select sum(col) from test)) from test)"), > Row(null)) > ``` -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org