Rule L059 bug with IF

src/sqlfluff/rules/L059.py

@@ -108,9 +108,9 @@ def _eval(self, context: RuleContext) -> Optional[LintResult]:
         # Ignore the segments that are not of the same type as the defined policy above.
         # Also TSQL has a keyword called QUOTED_IDENTIFIER which maps to the name so
         # need to explicity check for that.
-        if (
-            context.segment.name not in context_policy
-            or context.segment.raw.lower() in ("quoted_identifier", "naked_identifier")
+        if context.segment.name != context_policy or context.segment.raw.lower() in (
+            "quoted_identifier",
+            "naked_identifier",
         ):
             return None
 

test/fixtures/rules/std_rule_cases/L059.yml

@@ -277,3 +277,11 @@ test_pass_ignore_lists_mixed_case:
     rules:
       L059:
         ignore_words: foo
+
+test_pass_ignore_if:
+  pass_str:
+    DROP TABLE IF EXISTS "example";
+  configs:
+    rules:
+      L059:
+        prefer_quoted_identifiers: True