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Note：that batch writing provides at-least-once semantics and does not guarantee Exactly-Once semantics. However, it can be combined with Doris' primary key table to achieve Exactly-Once.

3. Datatype Mapping

Doris TypeFlink Type
NULL_TYPENULL
BOOLEANBOOLEAN
TINYINTTINYINT
SMALLINTSMALLINT
INTINT
BIGINTBIGINT
FLOATFLOAT
DOUBLEDOUBLE
DATEDATE
DATETIMETIMESTAMP
DECIMALDECIMAL
CHARSTRING
LARGEINTSTRING
VARCHARSTRING
STRINGSTRING
BitmapUnsupported datatype
HLLUnsupported datatype


Compatibility, Deprecation, and Migration Plan

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