"ERROR: relation "jiazuresqldatasource" does not exist" during upgrade

Issue description

When performing an upgrade using js-upgrade-samedb shell script the process fails, and an error referring to jiazuresqldatasource table is thrown, for example:

ERROR: relation "jiazuresqldatasource" does not exist[/code]

Cause and solution

This issue happens when upgrading from an older version of  TIBCO JasperReports^® Server, like 6.1.*, to one of the latest versions (6.3.* or 6.4.*). In the newer versions, the new database table jiazuresqldatasource was added to jasperserver database, and the samedb upgrade script does not take it into account. You will have to use a different upgrade approarch (like the js-upgrade-newdb shell script) to perform an upgrade from an older version

Other notes

Same error can also happen when running js-export script from a command line from a newer distribution of JasperReports Server while connected to jasperserver database of an older JasperReports Server installation. In such case you will have to use an older script to perform the export.