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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/12/02 18:43:13 UTC
[GitHub] [spark] Fokko commented on issue #26737: [SPARK-30103][SQL]
Consolidate Schema merge logic
Fokko commented on issue #26737: [SPARK-30103][SQL] Consolidate Schema merge logic
URL: https://github.com/apache/spark/pull/26737#issuecomment-560526443
I found the difference, the `.merge()` will actually take the union of the schema's, while the `TypeCoercion.findTightestCommonType()` will only modify the types.
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