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PLUGIN-669: Joiner plugin version 2.6.0 does not show join conditions
The following issue occurs in CDAP the Joiner plugin version 2.6.4.0, when you use the Joiner plugin, which lets you toggle between basic and advanced join conditions. After you upgrade CDAP to 6.4.0 or import a pipeline from a previous version, and you open the Joiner properties page, the basic join condition for the configured pipeline does not appear. This issue doesn't affect how the pipeline runs, the join condition still exists.
Workaround:
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