Github user dilipbiswal commented on the issue: https://github.com/apache/spark/pull/22408 @maropu This is the case we were discussing for which @ueshin suggested using `findWiderTypeWithoutStringPromotion`. Lets see what @cloud-fan and @gatorsmile think and we will do accordingly. We are picking a much restrictive cast (since we are injecting this implicitly).
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