[jira] [Commented] (DERBY-6303) Add ability to defer enforcement of unique indexes until transaction end.
[ https://issues.apache.org/jira/browse/DERBY-6303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17813401#comment-17813401 ] Bart van der Bilt commented on DERBY-6303: -- After fixing the data this works great :). Create schema, add foreign keys and import data last. Re-attached the corrected SQL files. Not sure how to reproduce this. > Add ability to defer enforcement of unique indexes until transaction end. > - > > Key: DERBY-6303 > URL: https://issues.apache.org/jira/browse/DERBY-6303 > Project: Derby > Issue Type: Improvement > Components: SQL >Affects Versions: 10.11.1.1 >Reporter: Richard N. Hillegas >Priority: Major > Attachments: movierentals26.sql, movies_insert_fk7.sql > > > Applications may need to defer the enforcement of unique indexes for the same > reasons that they need to defer the enforcement of unique constraints. See > DERBY-532. -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Commented] (DERBY-6303) Add ability to defer enforcement of unique indexes until transaction end.
[ https://issues.apache.org/jira/browse/DERBY-6303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17812859#comment-17812859 ] Bart van der Bilt commented on DERBY-6303: -- I added 2 sql files as test case. Also when converting primary keys to unique constrains I cannot get this migration to work from IJ. run 'fxmovierentals6-all.sql'. Works fine without the foreign keys. > Add ability to defer enforcement of unique indexes until transaction end. > - > > Key: DERBY-6303 > URL: https://issues.apache.org/jira/browse/DERBY-6303 > Project: Derby > Issue Type: Improvement > Components: SQL >Affects Versions: 10.11.1.1 >Reporter: Richard N. Hillegas >Priority: Major > Attachments: fxmovierentals6-all.sql, movies_insert_fk7.sql > > > Applications may need to defer the enforcement of unique indexes for the same > reasons that they need to defer the enforcement of unique constraints. See > DERBY-532. -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Commented] (DERBY-6303) Add ability to defer enforcement of unique indexes until transaction end.
[ https://issues.apache.org/jira/browse/DERBY-6303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13980125#comment-13980125 ] Dag H. Wanvik commented on DERBY-6303: -- That might have performance implications: deferrable indexes are physically non-unique, which gives a slightly slower code path than phsyically unique indexes. Next point: how would be make such indexes deferred (as opposed to deferrable)? For constraints, we use the SET CONSTRAINTS statement. Add ability to defer enforcement of unique indexes until transaction end. - Key: DERBY-6303 URL: https://issues.apache.org/jira/browse/DERBY-6303 Project: Derby Issue Type: Improvement Components: SQL Affects Versions: 10.11.0.0 Reporter: Rick Hillegas Applications may need to defer the enforcement of unique indexes for the same reasons that they need to defer the enforcement of unique constraints. See DERBY-532. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Commented] (DERBY-6303) Add ability to defer enforcement of unique indexes until transaction end.
[ https://issues.apache.org/jira/browse/DERBY-6303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13965733#comment-13965733 ] Dag H. Wanvik commented on DERBY-6303: -- Hi Rick, do you have any specific syntax in mind for this? Would such indexes be declared as deferrable? Add ability to defer enforcement of unique indexes until transaction end. - Key: DERBY-6303 URL: https://issues.apache.org/jira/browse/DERBY-6303 Project: Derby Issue Type: Improvement Components: SQL Affects Versions: 10.11.0.0 Reporter: Rick Hillegas Applications may need to defer the enforcement of unique indexes for the same reasons that they need to defer the enforcement of unique constraints. See DERBY-532. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Commented] (DERBY-6303) Add ability to defer enforcement of unique indexes until transaction end.
[ https://issues.apache.org/jira/browse/DERBY-6303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13965747#comment-13965747 ] Rick Hillegas commented on DERBY-6303: -- Hi Dag, I haven't worked out any syntax for this. Why not let all unique indexes be deferrable? Thanks. Add ability to defer enforcement of unique indexes until transaction end. - Key: DERBY-6303 URL: https://issues.apache.org/jira/browse/DERBY-6303 Project: Derby Issue Type: Improvement Components: SQL Affects Versions: 10.11.0.0 Reporter: Rick Hillegas Applications may need to defer the enforcement of unique indexes for the same reasons that they need to defer the enforcement of unique constraints. See DERBY-532. -- This message was sent by Atlassian JIRA (v6.2#6252)
