Don't detect CHAR as function (only as data-type)

Fixes #811

Author: nene

src/languages/transactsql/transactsql.functions.ts

@@ -233,7 +233,6 @@ export const functions: string[] = [
 
   // string
   'ASCII',
-  'CHAR',
   'CHARINDEX',
   'CONCAT',
   'CONCAT_WS',
@@ -243,7 +242,6 @@ export const functions: string[] = [
   'LEN',
   'LOWER',
   'LTRIM',
-  'NCHAR',
   'PATINDEX',
   'QUOTENAME',
   'REPLACE',

test/transactsql.test.ts

@@ -190,4 +190,11 @@ describe('TransactSqlFormatter', () => {
       GOTO InfiniLoop;
     `);
   });
+
+  // Issue #811
+  it('does not detect CHAR() as function', () => {
+    expect(format(`CREATE TABLE foo (name char(65));`, { functionCase: 'upper' })).toBe(dedent`
+      CREATE TABLE foo (name char(65));
+    `);
+  });
 });