Thanks for the response. I am using Teiid embedded, where I have created something like a wrapper connector over the Teiid-provided simpledb db connector which delegates some of the calls to SimpleDBConnectionImpl. For fetching the metadata of the source, I call methods on this connection object very similar to what happens in the Teiid metadata processor. Here, SimpleDBConnectionImpl.getAttributeNames is failing for domainNames which have a hyphen etc.

Have created a JIRA bug for the issue - TEIID-5363

Thanks for the resolution for TEIID-5363.

But I am not really sure whether this workaround would solve the problem, looking at where exactly I am facing the issue. I am facing the issue in SimpleDBConnectionImpl.getAttributeNames. This method gets called from my class (which is similar to SimpleDBMetadataProcessor) with domain names which are obtained from a previous call SimpleDBConnectionImpl.getDomains (which returns non-quoted domain names). When this non-quoted domain name gets passed to getAttributeNames, it leads to a failure -- so when I essentially don't have the attributeNames yet, I can't quote them in the nameInSource property and proceed.

Here's the stacktrace:

Caused by: com.amazonaws.services.simpledb.model.InvalidQueryExpressionException: The specified query expression syntax is not valid. (Service: AmazonSimpl

eDB; Status Code: 400; Error Code: InvalidQueryExpression; Request ID: b8d60ae4-9488-6f0e-214c-da4ff404dbb3)

        at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:1305)

        at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:852)

        at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:630)

        at com.amazonaws.http.AmazonHttpClient.doExecute(AmazonHttpClient.java:405)

        at com.amazonaws.http.AmazonHttpClient.executeWithTimer(AmazonHttpClient.java:367)

        at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:318)

        at com.amazonaws.services.simpledb.AmazonSimpleDBClient.doInvoke(AmazonSimpleDBClient.java:1039)

        at com.amazonaws.services.simpledb.AmazonSimpleDBClient.invoke(AmazonSimpleDBClient.java:1009)

        at com.amazonaws.services.simpledb.AmazonSimpleDBClient.select(AmazonSimpleDBClient.java:958)

        at org.teiid.resource.adapter.simpledb.SimpleDBConnectionImpl.getAttributeNames(SimpleDBConnectionImpl.java:90)

        at com.test.simpledb.SimpleDBMetadataProvider.getColumnMetadata(SimpleDBMetadataProvider.java:100)