[teiid-issues] [JBoss JIRA] (TEIID-3805) HANA SUBSTRING function inconsistent with teiid behaviour
Jan Stastny created TEIID-3805:
----------------------------------
Summary: HANA SUBSTRING function inconsistent with teiid behaviour
Key: TEIID-3805
URL: https://issues.jboss.org/browse/TEIID-3805
Project: Teiid
Issue Type: Bug
Components: Misc. Connectors
Affects Versions: 8.7.1.6_2
Reporter: Jan Stastny
Assignee: Steven Hawkins
When querying HANA using hana translator, there is an inconsistency in handling SUBSTRING
with similar parameters:
{code:sql}
SELECT SUBSTRING('sth',20,1) FROM tablename
{code}
That is, when the starting offset supplied to SUBSTRING function is greater than the
length of the string value, Teiid returns NULL in this case.
But when I run:
{code:sql}
SELECT SUBSTRING(STRINGNUM,20,1) FROM bqt1.smalla
{code}
(it is pushed to HANA and STRINGNUM column contains strings of length <=2)
I get empty strings instead of NULL values, which is default in Teiid.
This inconsistency is caused by different handling of such situation on HANA's side.
--
This message was sent by Atlassian JIRA
(v6.4.11#64026)