[teiid-issues] [JBoss JIRA] (TEIID-5014) Unable to use parameterized query with node pg module and Teiid/JBoss VDB

[Brian M (JIRA)]

Brian M created TEIID-5014:
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             Summary: Unable to use parameterized query with node pg module and Teiid/JBoss VDB
                 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!



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