Iceberg data types

References include Iceberg data types and a table of equivalent SQL data types by Hive/Impala SQL engine types.

Iceberg supported data types

Table 1.
Iceberg data type	SQL data type	Hive	Impala
binary		BINARY	Not supported.
boolean	BOOLEAN	BOOLEAN	BOOLEAN
date	DATE	DATE	DATE
decimal(P, S)	DECIMAL(P, S)	DECIMAL (P, S)	DECIMAL (P, S)
double	DOUBLE	DOUBLE	DOUBLE
fixed(L)		BINARY	Not supported
float	FLOAT	FLOAT	FLOAT
int	TINYINT, SMALLINT, INT	INTEGER	INTEGER
list	ARRAY	ARRAY	Read only
long	BIGINT	BIGINT	BIGINT
map	MAP	MAP	Read only
string	VARCHAR, CHAR	STRING	STRING
struct	STRUCT	STRUCT	Read only
time		STRING	Not supported
timestamp	TIMESTAMP	TIMESTAMP	TIMESTAMP
timestamptz	TIMESTAMP	Use TIMESTAMP WITH LOCAL TIMEZONE for handling these in queries	Read timestamptz into TIMESTAMP values Writing not supported
uuid	none	STRING Writing to Parquet is not supported	Not supported

Iceberg does not support the following SQL data types: