SSC-EWI-PG0006

Reference to a variable using the Label is not supported by Snowflake.

Severity

Medium

Description

This error is added when a FOR loop's body references a variable using the label. Snowflake does not support referencing a variable using the qualified name.

Code Example

Input Code:

PostgreSQL

IN -> PostgreSQL_01.sql

CREATE OR REPLACE PROCEDURE procedure1(out result VARCHAR(100))
LANGUAGE plpgsql
AS $$
BEGIN
result := '<';
<<outer_loop>>
for i in 1..3 loop
  <<inner_loop>>
  for i in 4..6 loop
  result := result || '(' || outer_loop.i || ', ' || i || ')';
  end loop inner_loop;
end loop outer_loop;
result := result || '>';
END;
$$;

Output Code:

Snowflake

OUT -> PostgreSQL_01.sql

CREATE OR REPLACE PROCEDURE procedure1 (result VARCHAR(100))
RETURNS VARIANT
LANGUAGE SQL
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "redshift",  "convertedOn": "02/16/2025",  "domain": "test" }}'
AS $$
BEGIN
result := '<';
for i in 1 TO 3 loop
  for i in 4 TO 6 loop
  result := result || '(' ||
                             !!!RESOLVE EWI!!! /*** SSC-EWI-PG0006 - REFERENCE TO A VARIABLE USING THE LABEL IS NOT SUPPORTED BY SNOWFLAKE. ***/!!! outer_loop.i || ', ' || i || ')';
  end loop inner_loop;
end loop outer_loop;
result := result || '>';
  RETURN OBJECT_CONSTRUCT('result', :result);
END;
$$;

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