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Commit b374a258 authored by Dilip Biswal's avatar Dilip Biswal Committed by Yin Huai
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[SPARK-12102][SQL] Cast a non-nullable struct field to a nullable field during analysis 

Compare both left and right side of the case expression ignoring nullablity when checking for type equality.

Author: Dilip Biswal <dbiswal@us.ibm.com>

Closes #10156 from dilipbiswal/spark-12102.
parent 575a1327
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