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Typical Join Operation Fails

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I have a very simple join operation that is failing and not sure what I am overlooking.

Attachment 24869

The feature class is from and SDE database, the table was created with a programmatic process (NumPyArrayToTable) but I've verified that the join field(s) should be okay. When attempting to join it simply does not find any matches when there should be 100% matched rows.

As a test I right-clicked the cell with the value "G-3356_G" and chose "Copy", then ran a SelectByAttributes on the FeatureClass and pasted this value into the query --- it successfully finds the row!

One thing I do notice, although I am unsure if it matters, looking at the join field in the table it has a "*" character next to it. I am not sure what this indicates or if it has any influence on why this join doesn't work.

Help!
Thanks,
j
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