]
Ramesh Reddy commented on TEIID-5014:
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It should not be any different unless the client side is sending a terminate connection.
You can turn on debug on the server side and issue the query and see if that is
prematurely sending any close call.
Unable to use parameterized query with node pg module and Teiid/JBoss
VDB
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Key: TEIID-5014
URL:
https://issues.jboss.org/browse/TEIID-5014
Project: Teiid
Issue Type: Feature Request
Affects Versions: 8.7.11.6_2
Environment: Teiid runtime 8.7.11
JBoss Data Virtualization 6.10
NodeJS 6.9.4
node pg 6.4.1
Mac OSX 10.11.6
Reporter: Brian M
Assignee: Steven Hawkins
When using node pg 6.4.1 in a node application to connect to a JBoss VDB with Teiid, we
are unable to successfully return data with a parameterized query.
Example from node js application (failure):
client.query("SELECT * FROM records WHERE recordType = $1", ['TYPE1'],
function(err, result) { done(); })
The above code will actually retrieve rows of data, but the connection will be terminated
unexpectedly from the JBoss side, thus resulting in a failure. We can confirm though that
the parameter is properly inserted into the variable, and rows of data can be retrieved
without issue.
Also, we have confirmed that when sending a static query, we are able to successfully
return data without JBoss terminating the connection. We found this approach from the
Teiid blog:
http://teiid.blogspot.com/2013/02/access-teiid-from-nodejs.html
Example from node js application (success):
client.query("SELECT * FROM records WHERE recordType = 'TYPE1'",
function(err, result) { done(); })
Is there something different about a parameterized query vs. a static query that may
cause this issue?
Are you aware of other individuals who have successfully used parameterized queries with
the node pg module and Teiid/JBoss VDB?
Is it possible that how the ODBC settings for Teiid are configured may have an impact on
parameterized queries vs. static queries?
Link:
https://teiid.gitbooks.io/documents/content/client-dev/ODBC_Support.html
Thank you so much for all your help!