mgaido91 commented on issue #25136: [SPARK-28322][SQL] Add support to Decimal type for integral divide URL: https://github.com/apache/spark/pull/25136#issuecomment-522582679 thank for clarifying @cloud-fan, now I get your point. So let me explain a bit better: - `div` performs integral division, ie. it returns the integer part of a division. This is true for all the data types which are passes as operands. So it is not an alias for `/` it is a different operation with a different result; - currently in Spark we do not support DECIMAL operands for it (before this PR. So basically, in order to get the equivalent operation, a user needs to cast the operands to DOUBLE and then perform div on them. After this PR, these 2 casts for the operands are not needed anymore and the same operation is available also for DECIMALs. Does this answer? Thanks.
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