Liang-Chi Hsieh created SPARK-5907: -------------------------------------- Summary: Selected column from DataFrame should not re-analyze logical plan Key: SPARK-5907 URL: https://issues.apache.org/jira/browse/SPARK-5907 Project: Spark Issue Type: Bug Components: SQL Reporter: Liang-Chi Hsieh
Currently, selecting a column from DataFrame wraps the original logical plan with a Project. As the column is used, the logical plan will be analyzed again. For some query plan, re-analyzing would side-effect that increases expression id. So when accessing the column, column's expr and its analyzed plan will point to different expressions. -- 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