flinksql-mysql数据类型

MySQL type	Flink SQL type	NOTE
TINYINT	TINYINT
SMALLINT	SMALLINT
TINYINT UNSIGNED
INT	INT
MEDIUMINT
SMALLINT UNSIGNED
BIGINT	BIGINT
INT UNSIGNED
BIGINT UNSIGNED	DECIMAL(20, 0)
REAL	FLOAT
FLOAT
DOUBLE	DOUBLE
NUMERIC(p, s)	DECIMAL(p, s)
DECIMAL(p, s)
where p <= 38
NUMERIC(p, s)	STRING	The precision for DECIMAL data type is up to 65 in MySQL, but the precision for DECIMAL is limited to 38 in Flink. So if you define a decimal column whose precision is greater than 38, you should map it to STRING to avoid precision loss.
DECIMAL(p, s)
where 38 < p <= 65
BOOLEAN	BOOLEAN
TINYINT(1)
BIT(1)
DATE	DATE
TIME [(p)]	TIME [(p)]
TIMESTAMP [(p)]	TIMESTAMP [(p)]
DATETIME [(p)]
CHAR(n)	CHAR(n)
VARCHAR(n)	VARCHAR(n)
BIT(n)	BINARY(⌈n/8⌉)
BINARY(n)	BINARY(n)
VARBINARY(N)	VARBINARY(N)
TINYTEXT	STRING
TEXT
MEDIUMTEXT
LONGTEXT
TINYBLOB	BYTES	Currently, for BLOB data type in MySQL, only the blob whose length isn't greater than 2,147,483,647(2 ** 31 - 1) is supported.
BLOB
MEDIUMBLOB
LONGBLOB
YEAR	INT
ENUM	STRING
JSON	STRING	The JSON data type will be converted into STRING with JSON format in Flink.
SET	ARRAY	As the SET data type in MySQL is a string object that can have zero or more values, it should always be mapped to an array of string
GEOMETRY	STRING	The spatial data types in MySQL will be converted into STRING with a fixed Json format. Please see MySQL Spatial Data Types Mapping section for more detailed information.
POINT
LINESTRING
POLYGON
MULTIPOINT
MULTILINESTRING
MULTIPOLYGON
GEOMETRYCOLLECTION