[ http://issues.apache.org/jira/browse/DERBY-1490?page=comments#action_12447504 ] Yip Ng commented on DERBY-1490: -------------------------------
The _v3 patch applies cleanly. There is one minor problem with the error message when attempting to rename: (1) A non-existing table (Rajesh has already commented on this one). e.g.: ij> rename column t2.c1 to w2; ERROR 42Y55: 'ALTER TABLE' cannot be performed on 'T2' because it does not exist (2) Renaming a column on a view. e.g.: ij> create view v1 as select * from t1; 0 rows inserted/updated/deleted ij> rename column v1.w1 to y1; ERROR 42Y62: 'ALTER TABLE' is not allowed on 'APP.V1' because it is a view. Both forms has the string 'ALTER TABLE' which should be 'RENAME COLUMN'. Other than that, The patch looks great! +1 to commit. > Provide ALTER TABLE RENAME COLUMN functionality > ----------------------------------------------- > > Key: DERBY-1490 > URL: http://issues.apache.org/jira/browse/DERBY-1490 > Project: Derby > Issue Type: New Feature > Components: Documentation, SQL > Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.2.1.6, 10.1.2.1, > 10.1.3.1 > Reporter: Bryan Pendleton > Assigned To: Bryan Pendleton > Attachments: 1490_cannot_patch.jpg, derby1490_v1_needMoreTests.diff, > renameColumn_v2_with_tests.diff, renameColumn_v3_after_review.diff > > > Provide a way to rename a column in an existing table. Possible syntax could > be: > ALTER TABLE tablename RENAME COLUMN oldcolumn TO newcolumn; > Feature should properly handle the possibility that the column is currently > used in constraints, views, indexes, triggers, etc. -- 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
