[ https://issues.apache.org/jira/browse/SPARK-38116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17488036#comment-17488036 ]
Apache Spark commented on SPARK-38116: -------------------------------------- User 'yoda-mon' has created a pull request for this issue: https://github.com/apache/spark/pull/35424 > Ability to turn off auto commit in JDBC source for read only operations > ----------------------------------------------------------------------- > > Key: SPARK-38116 > URL: https://issues.apache.org/jira/browse/SPARK-38116 > Project: Spark > Issue Type: Improvement > Components: SQL > Affects Versions: 3.2.1 > Reporter: Artem Kupchinskiy > Priority: Minor > > Currently, all the jdbc connections on executors side work always with auto > commit option set to true. > However, there are cases where this mode makes hard to use > JdbcRelationProvider at all, i.e. reading huge datasets from Postgres (a > whole result set is collected regardless of a fetch size when autocommit is > set to true > https://jdbc.postgresql.org/documentation/91/query.html#query-with-cursor ) > So the proposal is following: > # Add a boolean option "autocommit" to JDBC Source allowing a user to turn > off autocommit mode for read only operations. > # Add guards which prevent using this option in DML operations. > -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org