Data Type Mapping

This page lists how Doris and Flink data types correspond when Flink Doris Connector reads and writes data.

Doris to Flink

Doris Type	Flink Type
NULL_TYPE	NULL
BOOLEAN	BOOLEAN
TINYINT	TINYINT
SMALLINT	SMALLINT
INT	INT
BIGINT	BIGINT
FLOAT	FLOAT
DOUBLE	DOUBLE
DATE	DATE
DATETIME	TIMESTAMP
DECIMAL	DECIMAL
CHAR	STRING
LARGEINT	STRING
VARCHAR	STRING
STRING	STRING
DECIMALV2	DECIMAL
ARRAY	ARRAY
MAP	STRING
JSON	STRING
VARIANT	STRING
IPV4	STRING
IPV6	STRING

Flink to Doris

Flink Type	Doris Type
BOOLEAN	BOOLEAN
TINYINT	TINYINT
SMALLINT	SMALLINT
INTEGER	INTEGER
BIGINT	BIGINT
FLOAT	FLOAT
DOUBLE	DOUBLE
DECIMAL	DECIMAL
CHAR	CHAR
VARCHAR	VARCHAR/STRING
STRING	STRING
DATE	DATE
TIMESTAMP	DATETIME
TIMESTAMP_LTZ	DATETIME
ARRAY	ARRAY
MAP	MAP/JSON
ROW	STRUCT/JSON