qualifier in AttributeReference

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qualifier in AttributeReference

Ey-Chih Chow

I am upgrading my Spark application from Spark 2.1 to 2.2.  I found that in
many places that qualifiers of AttributeReferences for base tables are no
longer existing.  Is there any reason to take out qualifiers from
AttributeReferences?  Thanks.

Best regards,

Ey-Chih Chow  

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