Initial commit of akmon project

doc_news/test_immutable_fix.sql

@@ -0,0 +1,89 @@
+-- 全文搜索索引修复验证脚本
+-- 在修复后运行此脚本验证IMMUTABLE函数错误是否已解决
+
+-- ===================================================================
+-- 1. 验证IMMUTABLE函数创建成功
+-- ===================================================================
+
+SELECT 'Testing IMMUTABLE functions...' as test_phase;
+
+-- 测试标题搜索函数
+SELECT 'Title function test: ' || content_title_to_tsvector('AI Technology Development')::text as result;
+
+-- 测试内容搜索函数  
+SELECT 'Content function test: ' || content_body_to_tsvector('Artificial Intelligence is changing the world')::text as result;
+
+-- ===================================================================
+-- 2. 验证索引创建状态
+-- ===================================================================
+
+SELECT 'Testing index creation...' as test_phase;
+
+-- 检查全文搜索索引是否存在
+SELECT indexname, indexdef 
+FROM pg_indexes 
+WHERE schemaname = 'public' 
+  AND indexname IN ('idx_contents_fts_title', 'idx_contents_fts_content');
+
+-- ===================================================================
+-- 3. 验证函数属性
+-- ===================================================================
+
+SELECT 'Testing function attributes...' as test_phase;
+
+-- 检查函数是否标记为IMMUTABLE
+SELECT 
+    proname as function_name,
+    provolatile as volatility,
+    CASE provolatile 
+        WHEN 'i' THEN 'IMMUTABLE ✓'
+        WHEN 's' THEN 'STABLE'
+        WHEN 'v' THEN 'VOLATILE'
+    END as volatility_status
+FROM pg_proc 
+WHERE proname IN ('content_title_to_tsvector', 'content_body_to_tsvector');
+
+-- ===================================================================
+-- 4. 测试全文搜索功能
+-- ===================================================================
+
+SELECT 'Testing full-text search functionality...' as test_phase;
+
+-- 如果ak_contents表有数据，测试搜索功能
+DO $$
+BEGIN
+    IF EXISTS (SELECT 1 FROM ak_contents LIMIT 1) THEN
+        -- 测试标题搜索
+        RAISE NOTICE 'Title search test: %', 
+            (SELECT COUNT(*) FROM ak_contents 
+             WHERE content_title_to_tsvector(title) @@ to_tsquery('simple', 'test | demo | AI'));
+        
+        -- 测试内容搜索
+        RAISE NOTICE 'Content search test: %', 
+            (SELECT COUNT(*) FROM ak_contents 
+             WHERE content_body_to_tsvector(content) @@ to_tsquery('simple', 'test | demo | AI'));
+    ELSE
+        RAISE NOTICE 'No data in ak_contents table to test search functionality';
+    END IF;
+END $$;
+
+-- ===================================================================
+-- 5. 性能测试 (可选)
+-- ===================================================================
+
+SELECT 'Testing query performance...' as test_phase;
+
+-- 使用EXPLAIN分析索引使用情况
+-- 注意：如果表中没有数据，这个查询可能不会使用索引
+EXPLAIN (ANALYZE false, BUFFERS false) 
+SELECT id, title 
+FROM ak_contents 
+WHERE content_title_to_tsvector(title) @@ to_tsquery('simple', 'AI');
+
+-- ===================================================================
+-- 6. 完成验证
+-- ===================================================================
+
+SELECT '✅ IMMUTABLE function fix verification completed!' as status;
+SELECT 'If no errors appeared above, the fix was successful.' as note;
+SELECT 'You can now safely deploy the database structure.' as recommendation;