disable dropping qualifiers from attributes

2017-10-06 Thread Ey-Chih Chow 
Hi,

I found in some cases that qualifiers are dropped in the object attribute
(or AttributeReference), which makes the test of semanticEquals between two
expressions fail (one has qualifier and the other not).  Is there any way
that we can disable such dropping?  Thanks.

Ey-Chih Chow



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qualifier in AttributeReference

2017-09-07 Thread Ey-Chih Chow 
Hi,

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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