[teiid-issues] [JBoss JIRA] (TEIID-5290) NOW() function returns the same value for each call in BEGIN...END block
Steven Hawkins (JIRA)
issues at jboss.org
Mon Mar 19 15:55:00 EDT 2018
[ https://issues.jboss.org/browse/TEIID-5290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Hawkins updated TEIID-5290:
----------------------------------
Fix Version/s: 10.2
Priority: Major (was: Blocker)
> NOW() function returns the same value for each call in BEGIN...END block
> ------------------------------------------------------------------------
>
> Key: TEIID-5290
> URL: https://issues.jboss.org/browse/TEIID-5290
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 10.1
> Environment: teiid-10.1.0 on WildFly Full 11.0.0.Final (WildFly Core 3.0.8.Final)
> Reporter: dalex dalex
> Assignee: Steven Hawkins
> Fix For: 10.2
>
>
> Run the following queries:
> {code:sql}
> BEGIN
> declare timestamp ts1 = select now();
> DECLARE integer c = 20000;
> WHILE (c > 0)
> BEGIN
> c= c-1;
> END
> declare timestamp ts2 = select now();
> select ts1, ts2;
> END ;;
> {code}
> and
> {code:sql}
> BEGIN
> DECLARE integer c = 20000;
> create local temporary table #tem(ts timestamp);
> WHILE (c > 0)
> BEGIN
> INSERT INTO #tem VALUES((select NOW()));
> c= c-1;
> END
> select * from #tem;
> END ;;
> {code}
> NOW() function returns the same value for each call in BEGIN...END block and it doesn't matter if it is atomic or not.
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