Allow optimizer overrides for UPDATE and DELETE
-----------------------------------------------
Key: DERBY-4136
URL: https://issues.apache.org/jira/browse/DERBY-4136
Project: Derby
Issue Type: Improvement
Components: Performance
Affects Versions: 10.4.2.0
Reporter: Ronald Tschalaer
Priority: Minor
Since UPDATE and DELETE statements effectively run a query behind the scenes to
find the rows to update or delete, it would be useful to be able specify
optimizer overrides (-- DERBY-PROPERTIES) for these statements too. As a
specific use case, I have an issue with locking where I need to ensure the
indexes are always used in order to prevent deadlocks. The current workaround
is to run a SELECT (where I can supply the appropriate --DERBY-PROPERTIES
index=...) with an updatable ResultSet and do the updates/deletes on the
ResultSet. While this works, it is uglier and less clear than the corresponding
UPDATE/DELETE statements.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
