Exasol: Improve function formatting

[sti0]

Brief summary of the change made

Currently the function body don't gets formattet correctly. Even worse that it breaks existing formatting.

Current:

CREATE FUNCTION schem.func (
    p1 VARCHAR(6),
    p2 VARCHAR(10)
) RETURN VARCHAR (20)
IS
res VARCHAR(20);

BEGIN

IF p1 IS NOT NULL AND p2 IS NOT NULL THEN
IF p1 = 1 THEN
res:= 'Hello World';
ELSE
IF p2 = 3 THEN
res:= 'ABC';
END IF;
res:= 'WOHOOOO';
END IF;
END IF;
RETURN res;
END schem.func;
/

This PR improves the formatting.
After:

CREATE FUNCTION schem.func (
    p1 VARCHAR(6),
    p2 VARCHAR(10)
) RETURN VARCHAR (20)
IS
    res VARCHAR(20);

BEGIN

    IF p1 IS NOT NULL AND p2 IS NOT NULL THEN
        IF p1 = 1 THEN
            res:= 'Hello World';
        ELSE
            IF p2 = 3 THEN
                res:= 'ABC';
            END IF;
            res:= 'WOHOOOO';
        END IF;
    END IF;
    RETURN res;
END schem.func;
/

Are there any other side effects of this change that we should be aware of?

Nope

Pull Request checklist

• Please confirm you have completed any of the necessary steps below.

• Included test cases to demonstrate any code changes, which may be one or more of the following:

  • .yml rule test cases in test/fixtures/rules/std_rule_cases.
  • .sql/.yml parser test cases in test/fixtures/dialects (note YML files can be auto generated with tox -e generate-fixture-yml).
  • Full autofix test cases in test/fixtures/linter/autofix.
  • Other.

• Added appropriate documentation for the change.

• Created GitHub issues for any relevant followup/future enhancements if appropriate.

[codecov]

Codecov Report

Merging #2678 (e9f37aa) into main (0f6981a) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main     #2678   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          163       163           
  Lines        12023     12023           
=========================================
  Hits         12023     12023           

Impacted Files	Coverage Δ
src/sqlfluff/dialects/dialect_exasol.py	100.00% <100.00%> (ø)

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[tunetheweb]

The dialect test fixtures do not test indentation. Do you want to add a test case to the L003.yml to truly test this works (and ensure this won’t regress?).

[sti0]

Thanks for the hint. Your right. This would make more sense.

[tunetheweb]

No problem leaving the old ones in as well as grammar checks.

[sti0]

Added L003 testcases