I often get this error when the Tableau Desktop file is still open.
I've been having the same error. However, if I tell it to publish directly to Tableau server it works fine. Just seems to be exports to disk that are causing it.
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I have the similar issue.
Do you have any STR to INT or INT to STR transformation?
I found if you use field that was transformed to STR (original field is INT) in JOINS output just after JOIN stopped working.
After removing INT->STR transformation - the whole flow is started working.
Try to define on which step you have failing output. Basically, you can run output from any 'block' to troubleshoot it:
Found that issue here:
And issue #783920 from the Release Notes. Not sure if that relates to the issue.
After joining a .csv file with a MySQL table, the following error occurred, when publishing the .hyper file to Tableau Online/Tableau Server:
"Collation mismatch, use COLLATE statements to resolve."
In the logs I can see the errors:
com.tableau.loom.exceptions.OutputNodeFailureException: Unable to process output step: Failure evaluating to database: ERROR: collation mismatch, use COLLATE statements to resolve
TID:pool-3-thread-4 DOC_ID:888fdaaf-ca04-4cc6-8cb5-5407fb087466 REQ_ID:43a9d1f8-9770-4287-8a31-ddbf2b1accef LVL:ERROR CLASS:com.tableau.loom.runtime.SelectIntoExecutor MSG:Error processing selectInto
Thanks Egor. This was exactly my issue. In the end I took the calculation out of Prep and moved it into my Tableau workbook and it resolved the issue.Must be to do with the way the evaluation process changes after the first run. I was finding that the issue would only present itself on refresh and if I rebuilt my prep package it would work fine.