Добавьте файлы проекта.

SQLLinter/Infrastructure/Rules/InnerJoinRule.cs

@@ -0,0 +1,45 @@
+using Microsoft.SqlServer.TransactSql.ScriptDom;
+using SQLLinter.Common;
+
+namespace SQLLinter.Infrastructure.Rules;
+
+public class InnerJoinRule : BaseRuleVisitor
+{
+    public override string Text => "Используйте полную запись INNER JOIN.";
+
+    public override void Visit(QualifiedJoin node)
+    {
+        if (node.QualifiedJoinType != QualifiedJoinType.Inner)
+            return;
+
+        var tokens = node.ScriptTokenStream;
+        if (tokens == null) return;
+
+        var secondIndex = node.SecondTableReference.FirstTokenIndex;
+
+        int start = node.FirstTableReference.LastTokenIndex;
+        int end = node.SecondTableReference.FirstTokenIndex;
+
+        bool hasInner = tokens
+            .Skip(start)
+            .Take(end - start + 1)
+            .Any(t => t.TokenType == TSqlTokenType.Inner);
+
+        if (!hasInner)
+        {
+            var joinToken = tokens
+                .Skip(start)
+                .Take(end - start + 1)
+                .FirstOrDefault(t => t.TokenType == TSqlTokenType.Join);
+
+            if (joinToken != null)
+            {
+                AddViolation(Name, Text, joinToken.Line, joinToken.Column);
+            }
+            else
+            {
+                AddViolation(node);
+            }
+        }
+    }
+}