maropu commented on issue #20433: [SPARK-23264][SQL] Make INTERVAL keyword optional in INTERVAL clauses URL: https://github.com/apache/spark/pull/20433#issuecomment-458763463 not `internal` but `interval`? In this pr, I think we don't add a new keyword for the interval. This pr just changes a behaviour of the SQL parser for the interval. If ansi=true, the parser regards `2 seconds` as a interval. Otherwise, it regards it as an alias. https://github.com/apache/spark/pull/20433/files#r175528895 Sorry if I misunderstood your question...
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