Avoid delimited identifier processing if it's not required by application
-------------------------------------------------------------------------
Key: OPENJPA-2162
URL: https://issues.apache.org/jira/browse/OPENJPA-2162
Project: OpenJPA
Issue Type: Improvement
Components: jdbc, performance, sql
Affects Versions: 2.3.0, 2.2.1
Reporter: Kevin Sutter
Assignee: Kevin Sutter
Supporting delimited identifiers causes some unnecessary overhead if the
application and associated database doesn't use them or support them. This
change will surface the DBDictionary property supportsDelimitedIdentifiers.
Currently, this property gets set by querying the database to see if the
database supports this capability. With this change, we will first check if
this property has been explicitly set. If explicitly set, then we'll use that
value. Otherwise, we will default back to querying the database to determine
whether to support delimited identifiers or not.
Here's an example of the property to set to turn off the delimited identifier
support:
<property name="openjpa.jdbc.DBDictionary"
value="db2(SupportsDelimitedIdentifiers=false)"/>
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
