Data Type Mappings

Teradata to TDV Data Types

The following table shows the mapping from Teradata data types to TDV data types.

Teradata data types have these characteristics:

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FLOAT and REAL data types are synonymous with DOUBLE PRECISION.

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For Teradata version 15, the maximum length for BINARY and VARBINARY is 64000; for CHAR and VARCHAR it is 32000; for BLOB it is 2097088000; for CLOB it is 1048544000; and for JSON it is 8388096.

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For all supported versions of Teradata except version 15, the maximum length for BINARY, CHAR, VARBINARY, and VARCHAR is 32000; and the JSON data type is not supported.

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IN operator with subquery cannot be pushed down,

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The native data types BLOB, CLOB, JSON, and XML are not supported in DISTINCT, EXCEPT, GROUP BY, HAVING, INTERSECT, JOIN ON, ORDER BY or UNION clauses,

Teradata Data Type	TDV Data Type
BIGINT	BIGINT
BLOB	BLOB
BYTE	BINARY
BYTEINT	TINYINT
CHAR	CHAR
CLOB	CLOB
DATE	DATE
DECIMAL	DECIMAL
DOUBLE PRECISION	DOUBLE
FLOAT	DOUBLE
GRAPHIC	CHAR
INTEGER	INTEGER
INTERVAL DAY	INTERVAL DAY
INTERVAL DAY TO HOUR	INTERVAL DAY TO HOUR
INTERVAL DAY TO MINUTE	INTERVAL DAY TO MINUTE
INTERVAL DAY TO SECOND	INTERVAL DAY TO SECOND
INTERVAL HOUR	INTERVAL HOUR
INTERVAL HOUR TO MINUTE	INTERVAL HOUR TO MINUTE
INTERVAL HOUR TO SECOND	INTERVAL HOUR TO SECOND
INTERVAL MINUTE	INTERVAL MINUTE
INTERVAL MINUTE TO SECOND	INTERVAL MINUTE TO SECOND
INTERVAL MONTH	INTERVAL MONTH
INTERVAL SECOND	INTERVAL SECOND
INTERVAL YEAR	INTERVAL YEAR
INTERVAL YEAR TO MONTH	INTERVAL YEAR TO MONTH
LONG VARCHAR	CLOB
NUMERIC	NUMERIC
PERIOD(DATE)	VARCHAR
PERIOD(TIME)	VARCHAR
PERIOD(TIMESTAMP)	VARCHAR
PERIOD(TIME WITH TIME ZONE)	VARCHAR
PERIOD(TIMESTAMP WITH TIME ZONE)	VARCHAR
REAL	DOUBLE
SMALLINT	SMALLINT
TIME	TIME
TIME WITH ZONE	VARCHAR
TIMESTAMP	TIMESTAMP
TIMESTAMP WITH ZONE	VARCHAR
VARBYTE	VARBINARY
VARCHAR	VARCHAR
VARGRAPHIC	VARCHAR
XML	XML (version 15 and above)