KurtYoung commented on issue #10035: [FLINK-14080][table-planner-blink] Introduce SqlTimestamp as internal representation of TIMESTAMP_WITHOUT_TIME_ZONE URL: https://github.com/apache/flink/pull/10035#issuecomment-549239819 One question just pop up, what responsibility of `precision` field inside `SqlTimestampSerializer`? Let's say I created a SqlTimestamp with `fromEpochMillis(123)`, and created a `SqlTimestampSerializer` with precision 2. And after I serialize and deserialize, I still get a SqlTimestamp which actually still can get 123 millis out of it. I'm wondering what kind of purpose does precision in SqlTimestampSerializer want to achieve?
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