Shixiong Zhu created SPARK-28651: ------------------------------------ Summary: Streaming file source doesn't change the schema to nullable automatically Key: SPARK-28651 URL: https://issues.apache.org/jira/browse/SPARK-28651 Project: Spark Issue Type: Bug Components: Structured Streaming Affects Versions: 2.4.3 Reporter: Shixiong Zhu
Right now, batch DataFrame always changes the schema to nullable automatically (See this line: https://github.com/apache/spark/blob/325bc8e9c6187a96b33a033fbb0145dfca619135/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala#L399). However, streaming DataFrame's schema is read in this line https://github.com/apache/spark/blob/325bc8e9c6187a96b33a033fbb0145dfca619135/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala#L259 which doesn't change the schema to nullable automatically. We should make streaming DataFrame consistent with batch. -- This message was sent by Atlassian JIRA (v7.6.14#76016) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org