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Updated on 2024-01-22 GMT+08:00

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Data Type Conversion

When data of GaussDB(for MySQL) instances is synchronized to HTAP instances, the data type will be converted. For details, see Table 1.

**Table 1** Data type conversion
Data Type	GaussDB(for MySQL) Data Type	HTAP Data Type
NUMERTIC TYPES	TINYINT	Int8
	SMALLINT	Int16
	MEDIUMINT	Int32
	INTEGER/INT	Int32
	BIGINT	Int64
	DECIMAL/NEMERIC	Decimal
	FLOAT	Float32
	DOUBLE	Float64
	BIT	UInt64
DATE TIME TYPES	DATE	Date
	DATETIME	DateTime
	TIMESTAMP	DateTime
	TIME	String
	YEAR	UInt16
String Data Types	CHAR	String
	VARCHAR	String
	BINARY	FixedString
	VARBINARY	String
	BLOB	String
	TEXT	String
	ENUM	Enum
	SET	SET index
Spatial Data Types	GEOMETRY	String
	POINT	String
	LINESTRING	String
	POLYGON	String
	MULTIPOINT	String
	MULTILINESTRING	String
	MULTIPOLYGON	String
	GEOMETRYCOLLECTION	String
JSON Data Types	JSON	String

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