Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the blog post .

enable_numeric_rounding

Values (default in bold)

on (true), off (false)

Description

Specifies whether to use numeric rounding. If enable_numeric_rounding is on, Amazon Redshift rounds NUMERIC values when casting them to other numeric types, such as INTEGER or DECIMAL. If enable_numeric_rounding is off, Amazon Redshift truncates NUMERIC values when casting them to other numeric types. For more information on numeric types, see Numeric types.

Example

--Create a table and insert the numeric value 1.5 into it.
CREATE TABLE t (a numeric(10, 2));

INSERT INTO t VALUES (1.5);

SET enable_numeric_rounding to ON;
--Amazon Redshift now rounds NUMERIC values when casting to other numeric types.

SELECT a::int FROM t;

 a
---
 2
(1 row)


SELECT a::decimal(10, 0) FROM t;

 a
---
 2
(1 row)


 SELECT a::decimal(10, 5) FROM t;
 
    a
---------
 1.50000
(1 row)


SET enable_numeric_rounding to OFF;
--Amazon Redshift now truncates NUMERIC values when casting to other numeric types.

SELECT a::int FROM t;

 a
---
 1
(1 row)


SELECT a::decimal(10, 0) FROM t;

 a
---
 1
(1 row)


SELECT a::decimal(10, 5) FROM t;

    a
---------
 1.50000
(1 row)