[ http://issues.apache.org/jira/browse/DERBY-818?page=all ] Daniel John Debrunner closed DERBY-818: ---------------------------------------
> Read-only embedded ResultSets incur performance penalty due to updateable > ResultSet code. > ----------------------------------------------------------------------------------------- > > Key: DERBY-818 > URL: http://issues.apache.org/jira/browse/DERBY-818 > Project: Derby > Type: Improvement > Components: JDBC, Performance > Reporter: Daniel John Debrunner > Assignee: Daniel John Debrunner > Priority: Minor > Fix For: 10.2.0.0 > Attachments: derby818patch.txt > > The fields columnGotUpdated and copyOfDatabaseRow are allocated and > maintained in EmbedResultSet for every ResultSet but they are only required > if the result set is updateable. I saw a 5% improvement in execution rate on > a simple VALUES clause when fixing this. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
