Query Performance Tracking & Message Handling Refactor

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [0.8.3] - 2026-02-14
+
+### Added
+- **Query Performance Tracking**: Automatically tracks execution times for queries and warns about performance degradation ( > 50% slower than baseline).
+- **Visual Explain Plans**: Enhanced visualization for `EXPLAIN (FORMAT JSON)` results, providing a clear graphical representation of query execution paths.
+
+### Improved
+- **Message Handling Architecture**: Refactored internal message routing to a robust `MessageHandler` registry pattern for improved stability and maintainability.
+- **CodeLens UX**: Cleaned up and reordered CodeLens actions for better usability; removed redundant 'Explain' action (now accessible via main toolbar/menus).
+
+---
+
 ## [0.8.2] - 2026-02-08
 
 ### Added

README.md

@@ -37,6 +37,7 @@
 
 - 🔌 **Secure Connections** — VS Code SecretStorage encryption
 - 🛡️ **Connection Safety** — Environment tagging (🔴 PROD, 🟡 STAGING, 🟢 DEV), read-only mode, query safety analyzer
+- ⏱️ **Performance Tracking** — Historical query execution monitoring with degradation alerts
 - 📊 **Live Dashboard** — Real-time metrics & query monitoring
 - 📓 **SQL Notebooks** — Interactive notebooks with AI assistance
 - 💾 **Saved Queries** — Tag-based organization, connection context restoration, AI metadata generation, edit & reuse
@@ -93,6 +94,7 @@
 - Real-time activity monitoring
 - Index usage analytics
 - Bloat detection & warnings
+- Query performance history & alerts
 - Complete table definitions
 
 </td>

src/activation/providers.ts

@@ -3,7 +3,7 @@ import { ChatViewProvider } from '../providers/ChatViewProvider';
 import { DatabaseTreeProvider } from '../providers/DatabaseTreeProvider';
 import { PostgresNotebookProvider } from '../notebookProvider';
 import { PostgresNotebookSerializer } from '../postgresNotebook';
-import { AiCodeLensProvider } from '../providers/AiCodeLensProvider';
+
 import { QueryCodeLensProvider } from '../providers/QueryCodeLensProvider';
 import { QueryHistoryProvider } from '../providers/QueryHistoryProvider';
 import { ProfilesTreeProvider, SavedQueriesTreeProvider } from '../providers/Phase7TreeProviders';
@@ -62,19 +62,7 @@ export function registerProviders(context: vscode.ExtensionContext, outputChanne
     )
   );
 
-  // Register CodeLens Provider for both 'postgres' and 'sql' languages
-  const aiCodeLensProvider = new AiCodeLensProvider();
-  context.subscriptions.push(
-    vscode.languages.registerCodeLensProvider(
-      { language: 'postgres', scheme: 'vscode-notebook-cell' },
-      aiCodeLensProvider
-    ),
-    vscode.languages.registerCodeLensProvider(
-      { language: 'sql', scheme: 'vscode-notebook-cell' },
-      aiCodeLensProvider
-    )
-  );
-  outputChannel.appendLine('AiCodeLensProvider registered for postgres and sql languages.');
+
 
   // Register Query CodeLens Provider for EXPLAIN actions
   const queryCodeLensProvider = new QueryCodeLensProvider();

src/common/types.ts

@@ -91,6 +91,7 @@ export interface QueryResults {
   success?: boolean;
   backendPid?: number | null;
   explainPlan?: any;
+  performanceAnalysis?: any;
   slowQuery?: boolean;
   breadcrumb?: BreadcrumbContext;
 }