yaooqinn commented on issue #25189: [SPARK-28435][SQL] Support accepting the 
interval keyword in the schema string
URL: https://github.com/apache/spark/pull/25189#issuecomment-575977876
 
 
   Hi, this pr seems to expose interval type to table schema for creating and 
altering table, e.g. in 2.4 or earlier, `HiveClientImpl.verifyColumnDataType` 
will fail those commands with intervals. In 
https://github.com/apache/spark/pull/27277, I'd like to restore this and 
related unexpected behaviors for keeping interval type internal and keep the 
expected cast behavior involved here, thanks.

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