The conversion of the return statement from Amazon Redshift to Snowflake is straightforward, only considering adding a NULL to the return statement on Snowflake.
Grammar Syntax
RETURN;
Sample Source Patterns
Simple Case
Input Code:
IN -> Redshift_01.sql
CREATE OR REPLACE PROCEDURE procedure1 ()
AS
$$
BEGIN
RETURN;
END
$$ LANGUAGE plpgsql;
Output Code:
OUT -> Redshift_01.sql
CREATE OR REPLACE PROCEDURE procedure1 ()
RETURNS VARCHAR
LANGUAGE SQL
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": { "major": 0, "minor": 0, "patch": "0" }, "attributes": { "component": "redshift", "convertedOn": "02/12/2025", "domain": "test" }}'
AS
$$
BEGIN
RETURN NULL;
END
$$;
When the procedure has out parameters
SnowConvert returns a variant with parameters set up as output parameters. So, for each return, Snowconvert will add a variant as a return value.
Input Code:
IN -> Redshift_02.sql
CREATE OR REPLACE PROCEDURE procedure1 (OUT output_value VARCHAR)
AS
$$
BEGIN
RETURN;
END
$$ LANGUAGE plpgsql;
Output Code:
OUT -> Redshift_02.sql
CREATE OR REPLACE PROCEDURE procedure1 (output_value VARCHAR)
RETURNS VARIANT
LANGUAGE SQL
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": { "major": 0, "minor": 0, "patch": "0" }, "attributes": { "component": "redshift", "convertedOn": "02/12/2025", "domain": "test" }}'
AS
$$
BEGIN
RETURN OBJECT_CONSTRUCT('output_value', :output_value);
END
$$;
