Help Center/ GaussDB/ Developer Guide(Centralized_2.x)/ SQL Reference/ Data Types/ Data Types Supported by Column-store Tables
Updated on 2023-10-23 GMT+08:00

Data Types Supported by Column-store Tables

Table 1 lists the data types supported by column-store tables.

Table 1 Data types supported by column-store tables

Category

Data Type

Length

Supported or Not

Numeric Types

smallint

2

Supported

integer

4

Supported

bigint

8

Supported

decimal

-1

Supported

numeric

-1

Supported

real

4

Supported

double precision

8

Supported

smallserial

2

Supported

serial

4

Supported

bigserial

8

Supported

largeserial

-1

Supported

Monetary Types

money

8

Supported

Character Types

character varying(n), varchar(n)

-1

Supported

character(n), char(n)

n

Supported

character, char

1

Supported

text

-1

Supported

nvarchar

-1

Supported

nvarchar2

-1

Supported

name

64

Not supported

Date/Time Types

timestamp with time zone

8

Supported

timestamp without time zone

8

Supported

date

4

Supported

time without time zone

8

Supported

time with time zone

12

Supported

interval

16

Supported

big object

clob

-1

Supported

blob

-1

Not supported

other types

...

...

Not supported