[ https://issues.apache.org/jira/browse/TRAFODION-2401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Anoop Sharma reassigned TRAFODION-2401: --------------------------------------- Assignee: Anoop Sharma > Creating Foreign Key constraint NOT ENFORCE still create system index > --------------------------------------------------------------------- > > Key: TRAFODION-2401 > URL: https://issues.apache.org/jira/browse/TRAFODION-2401 > Project: Apache Trafodion > Issue Type: Improvement > Components: sql-cmp > Affects Versions: 2.2-incubating > Reporter: Eric Owhadi > Assignee: Anoop Sharma > > if you create a table and declare a foreign key not enforced, to help > optimizer make good decision in plan selection, but still you elected to "not > enforce" the FK checking to improve ingestion performance, trafodion is still > creating a system index, and therefore impact ingest performance. The index > is never used, as the FK is not enforced, but we are still paying the cost of > index maintenance -- This message was sent by Atlassian JIRA (v6.3.4#6332)