Can AWS glue bookmark column (for jdbc)have null value?

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Hi, just wanted to know if aws glue bookmark columns can have null values - if null value is not supported, can anyone point to appropriate aws documentation for that?

Thank you!

asked a year ago209 views
1 Answer
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The condition is that the column (or columns) must be monotonically increasing, a column with NULL values doesn't meet that condition because a NULL cannot be compared to other number and define which is higher or lower.

https://docs.aws.amazon.com/glue/latest/dg/monitor-continuations.html

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answered a year ago

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